Re-Blog: Futurism Is A Thing. Just Ask A Futurist.


(Originally posted 9/14/2017 on Read With The Gringa)

If my dear readers are anything like the gringa, they are always wondering what the future holds. What goes through your mind? War? Peace? Natural disasters? Space alien invasion? AI revolution and hostile take-over? To know the best theories about the future, all you have to do is ask a futurist. Yeah. Futurism. That’s a thing.

Who else would be a qualified futurist when it comes to tomorrow’s technology than the Director of Engineering for Google? Although the gringa loves how Google synchronizes so many things in life, I do have to admit that sometimes it’s downright creepy. I mean, when my phone starts asking me questions, like, “Do you want your friend’s to know that you’re at the donut store,” I mean, I’m like, “Just mind your own business, phone, okay?” But I digress, Google has a lot to say about what’s in store for the general public as artificial intelligence keeps getting smarter.


Ray Kurzweil, Director of Engineering for Google, wants everyone to mark the year 2029. What’s so important about the year the gringa will be a dowdy, old 61-year-old gal? He expects that to be the year when AI passes a valid Turing test. But what does that mean? What is a Turing test?


In 1950 Alan Turing developed a test that would measure a machine’s ability to exercise intelligence on a level that is indistinguishable from a human. In other words, to pass a credible Turing test means technology has been developed that is so sophisticated, when we engage with another person we will be left wondering if that person is truly human or just a cunningly convincing robot.


If that’s not provocative enough of a benchmark for you, mark the year 2045 on your calendar and hold on to your hats, folks. This is when Kurzweil expects a singularity to occur. But what does that mean? Why is that significant? 


Where basic semantics are concerned, a singularity is simply something that is unique, like a culture. Where space exploration and matter are concerned, it means something that has infinite value, like a black hole. But where humanity and AI are concerned, it means something hair-raising which is why the gringa advises the dear reader to hold on to your hat.


Achieving a singularity with regard to AI and humanity means technology and biology merge, becoming a singular creation, indistinguishable from one another. Now, images from those 1970s TV series about the bionic woman and her male counterpart come to mind. Is that what Kurzweil is talking about? Not exactly.


What he expects is that by 2049 AI will evolve to be smarter than human beings. They will become super-intelligent. When that happens, humans will begin transplanting technology directly into our brains. This means no more logging on or off, we will be perpetually linked with the cloud and constantly having our information updated, backed-up and optimized. Our lives will be digitally enhanced on a biological level 24/7.


In fact, Kurzweil claims that this evolution is already happening. It’s just that when the Turing event happens, things will begin to accelerate. But is there reason to be concerned? Afraid? Well, it seems pointless to fret too much. The genie is already out of the bottle. The best thing to do is to begin preparing humanity for this transition. 

Instead of using scare tactics, causing people to fear the possibility of being enslaved by robots, truth should be shared to put their minds at ease. After all, billions of AIs are already hard at work right now. So far, they haven’t banded together and waged war against humanity. 


Instead, AIs are helping humans improve the lives of all mankind. They are empowering humans to overcome serious medical disabilities. And when humans are able to hook-up their neocortex to the cloud, AIs will become our intellectual partners, sharing their super-intelligence with us.


What’s to fear about fellow humans who are smarter, funnier, and more creative? What’s to fear from humans that will finally be able to grasp complex science and histories that once baffled them? What’s not to love about a cybernetic cure for diseases like Parkinson’s? 


So, the gringa is looking forward to the day when I can make an appointment with my doctor to fix the epilepsy that challenges my life every single day. I look forward to less pain. I eagerly anticipate more emotional stability. Being able to scuba dive or climb the Alps without the experience resulting in my death is the gringa’s idea of real freedom. 


Even if I am an old lady by the time the 2030’s and 2040’s roll around and make this kind of technology available, to live epilepsy free if only for a single day is worth it. The gringa may find that adventure even more exciting than flying to Mars.


Source: Futurism


Image Credit: Artist


Video Credit: Cosmology Today

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Re-Blog: Plasma Power Is Problematic


(Originally posted 9/7/2017 on Read With The Gringa)

If the gringa’s dear readers are anything like herself, you have spent plenty of time watching shows like Star Trek and reading fantastic science fiction. That means you’ve heard plenty of references to plasma: plasma storms, plasma discharges, plasma cannons, etc. But what the heck is plasma? Is it good for anything? Can we harness its power? Here’s the scoop on plasma.


Plasma is an ionized gas. What that means is that atoms, molecules and all kinds of stuff are constantly being converted into ions. This happens by removing electrons from the affected substance. An ion contains an electrical charge when conversion is complete. That means plasma packs a wallop of a punch. And there is lots of plasma throughout our Universe.


The Sun’s mass makes up nearly the entire mass of our Solar System, 99.85% of it. That mass creates gravity so powerful it squishes things together, like atoms, creating a fusion reaction which makes… wait for it… PLASMA.


99.999% of the Sun is plasma. Scientists estimate that more than 99% of all matter exists in a plasma state. If so much of it is lying about, why aren’t we humans using it for electricity and power and stuff? Why are we still in the Stone Ages with coal and petroleum? Because cosmic plasma is a bit trickier than the plasma we find here on Earth, like lightning. The Sun’s plasma is not just electrified. It also has its own magnetic field. And, boy is it hot!

Because of the magnetics that are part and parcel of the Sun’s plasma, harnessing our nearest star as an energy source would prove to be highly disruptive to communications. Basically, radio frequencies would fry. You see, the Sun is a fusion nuclear reactor way up in the sky. The gringa’s not sure, then, if direct solar power would really be “green” energy.


To harness the power of cosmic plasma for terrestrial use, scientists would have to, theoretically, confine the reactor. Yep, that means putting the Sun in a box, so to speak. Despite years of research, little progress has been made to figure out how to do that and humanity survive in the end. One reason is because scientists have no idea how cosmic plasma and the resulting fusion reaction would affect any barrier they might construct as a containment field. Yeah, those invisible forcefields on Star Trek? Mm hmm. Pure fantasy.


But despite this frustration, scientists remain committed to finding a solution. They are well aware that the current energy sources of Earthlings are finite. One day all the coal will be gone. There will be no more crude to suck from the ground. And even developing more solar and wind energy supplies will only take the entire globe so far. Large industrial areas and densely populated regions will need the power of plasma if they want a constant, reliable power supply.


But why can’t scientists seem to make any progress? In order to test a theory, a scientist must conduct a controlled experiment that re-creates the conditions. Since there is no way to reproduce the 15 million degree Fahrenheit temperature of the Sun, um, yeah, progress is pretty much going nowhere. 


Sure, science has come up with fun gadgets like plasma balls that are basically sold as lighting novelties. But that glass bottle is not anywhere close to being sufficient to bottle a chunk of the Sun. Scientists literally have to find a way to put a sizable piece of the Sun inside of something.


And finding a substance that can withstand temperatures in excess of the 100 million degrees produced by fusion reactions has to do more than not melt. When the plasma comes into contact with the barrier, it must remain pure and clean. 


The gringa can only wonder what the heck might happen should those walls fail. Will half the globe be scorched to infinity in a split second? Will the survivors on the other side of the globe become so radiated they die a slow, agonizing death over the course of the next few weeks or months? Or will a wave of plasma ride the ionosphere to the other side and the survivors know that death is on the way because their blue sky turns blood-red? Or will they basically be cooked alive from a sudden increase in temperature? In other words, will the entire globe become a microwave oven?


Scientists claim that plasma energy will be the cleanest energy ever. Yet, at the same time they are conducting research on the effects of radiation and plasma damage. So, the gringa remains skeptical about the “green” selling points.


Science communities around the world hope to have the first plasma reactor operational by 2018.

Nuclear science professors at MIT explain that the general public shouldn’t expect any real development of commercial plasma fusion reactors for about two more decades. The gringa will be at an age by that time where I might actually appreciate the prospect of a quick and relatively painless death. But, for the sake of my children, grandchildren and great-grandchildren, I suppose I should keep a watchful eye on the developments of this future energy source.


Sources:

Plasma Universe


Science Learn


University of California San Diego


Image Credit: Space.com

Video Credits:

Science Channel


Seeker

A Revolt Against Reality


(Originally posted 8/15/2017 on Read With The Gringa)

Has the gringa’s dear readers been equally fascinated as the gringa about theories that humanity exists inside a space alien civilization’s advanced alternate reality game? Has it made you pause and deeply ponder such possibilities? Have you ever looked deeply into your own eyes in a mirror and wondered, “How do we really know what is real?” Well, the gringa has good news, depending on how you look at it, brought to us all by some Australian physicists.


The dear reader may ask how their experiments, supposedly proving that reality doesn’t really exist, could be good news. Well, in light of all the trouble and suffering that perpetually exists throughout the world despite mankind’s best efforts to make things better, well, all this mayhem may not even be our fault! 


Or, another perspective could take a different tack. Now that we know that we don’t necessarily control our reality, humanity could possibly stage a revolt. We could simply refuse to play anymore. We could all engage in a worldwide sit-in refusing to participate in ET theatre. But, first, to the experiment.


First, one must understand the experiment: The John Wheeler delayed-choice thought experiment, also called the Wheeler thought experiment.  This experiment poses a theoretical question: When does an object decide to act like one thing or another at the atomic level? In other words, at some point, atoms have to decide how they will work together to “be” something. How do they do this?


Physicists from the Australian National University, Andrew Truscott and Roman Khakimov, performed the following experiment to answer these very complex questions:

  • They used fancy equipment to trap a single helium atom.
  • They dropped the atom through a pair of lasers that created a scattered grating pattern.
  • Another set of lasers were added at different intervals to recombine the laser beams to make it seem as if the single atom was traveling 2 separate paths.
  • When the second set of lasers were removed, the atom seemed to make a choice by preferring one particular laser beam.

What does this prove? According to Truscott it shows an atom making a choice based on belief which then caused it to transform into that as reality. Here is his complicated premise broken down:

  • First, the scientist must recognize that final outcome reflects that the atom really did choose a particular path.
  • By accepting atom choice as proven, theoretically the future expectation was affected by the past experience of the atom.
  • Fact: The atom did not actually travel from point A to point B, only simulated by the laser beams.
  • Fact: The wave-like behavior indicating travel by the atom only came into existence AFTER the scientists measured the data of the entire laser beam journey experiment. 
  • Fact: Simulation caused the atom to choose to create a false reality.

To clear up the confusion, think of it like this:

  • You bake a cake.
  • Before icing it you overlay the cake with holographic images of different icing designs.
  • You ooh and aah over a particular selection.
  • When finished perusing all your options, you turn off the holographic projector and discover the cake is the iced cake design you oohed and aahed over.
  • You then, quite naturally, freak out.

So what does this tell us about our own reality where matter is based on atomic structure? It means that atoms only arrange themselves AFTER being observed. In other words, reality as we know it only happens after observation by an audience. Since that observation cannot be the subject of said observation, then atom based humanity must be being observed by someone, or something, else.

Yes. The gringa is sufficiently freaked out. I feel naked. I feel embarrassed about all those time I picked my nose thinking that I was alone. I am also really ticked off about all this suffering, wondering if it could all be stopped instantly if the observers would just stop being such sociopaths. The gringa is ready for a revolution of all humanity on a quantum physics level. Who wants to join me?

Sources:

Image Credit: 

Video Credit:

Why Won’t Physics Give Ghosts A Chance?


Darn those scientists. They have gone and spoiled it for the gringa again. I mean, who doesn’t love a good ghost story? The reason such a tale is so tantalizing is because no one really knows if ghosts are real or not. Until now. Yeah. Thinks Neil Degrasse Tyson and Brian Cox, you ol’ fun-spoiling physicists, you.

The dear reader would probably like to know what I’m talking about. I’m talking about an experiment that took place with the Large Hadron Collider. And the results are being interpreted to prove that ghosts just don’t exist. At least according to the laws of physics. According to Cox, a British theoretical physicist, he explains that if there were information zipping about after a person’s dies, the Large Hadron Collider would detect those bits of data. This is how his theory goes:

-For a ghost to exist, after death, a pattern of information from living cells would travel through some other medium.

-The traveling pattern would interact with particles of matter from the human body it leaves while it makes the transfer from one medium to the other.

-The Large Hadron Collider has detected nothing like this.

Is it possible that there is a physics law not yet  known by today’s scientists which might then make it possible for ghosts to be real?

Cox’s answer for this is that scientists would need to invent a new model for Particle Physics. But, considering the energy scale by which particles interact with the human bodies, this is not conceivable with today’s knowledge or technology. So the gringa remains hopeful that ghosts still have a chance.

Tyson, however, likes to rain on the gringa’s ghost parade. He says that just because there are gaps in what physicists do know doesn’t mean that what they don’t know will automatically support the existence of things like ghosts. Darn it. In fact, he believes that Cox’ work at the European Centre for Nuclear Research is sufficient to definitively conclude that ghosts don’t exist.

Tyson references the law of entropy as proof. There is a complicated physics law related to entropy in thermodynamic states. In a nutshell, what it means for ghosts is that energy is simply lost, whether it is man-made energy or natural energy. Energy simply expends itself and is lost and you can’t get it back.

But the gringa says, “Whoa, there, Nellie!” I mean, entropy is about the relationship of matter and energy. There is also the principal that, although matter may lose energy and experience entropy, energy doesn’t cease to exist. Energy may simply change into another form and never cease to exist.

The gringa thinks that Tyson errs to use entropy to kill off ghosts. Entropy is what happens to the physical body when energy leaves the body. If the energy is consciousness, the inspiration and existence of thought and individuality, that energy would not cease to exist simply because the human body of matter lost control of it.

Cox answers this idea with the assertion that if consciousness exists as an energy that animates the human body, then it must interact with the particles the human body is made of. So far, with the precision instruments that he has at hand, he sees no evidence of such interaction. But does that mean it doesn’t happen? After all, there was a time when man couldn’t “see” an atom or a blood cell, but they still existed.

So, the gringa started out disappointed but, in the end, I find myself right back where I started from. Believing that ghosts might possibly be the consciousness energy of inspiration of each unique human being’s individuality. After death, this energy may very well transform into another existence, possibly residing in a dark matter universe. The gringa is still a believer in ghost possibility until physicists can come up with something better than “so far with what we know and the instruments we’ve got we have to say no to ghosts”.

After all, Cox nor Tyson were able to explain whether or not consciousness exists. They cannot explain why humans have individuality and how though originates. In other words, the only thing they do know are the laws of physics that relate to matter. A “ghost” has no matter. These guys need to get back to the drawing board. And the gringa suspects Tyson may secretly be a believer in ghosts:

Sources:

Physics-Astronomy

Image Credit: WDFYFE

Video Credit: StarTalk Radio

An Order Of Milky Way Sunny Side Up


What has the gringa shared so far about what she knows regarding dark matter?

“There is no physical evidence that it exists, only a theory based on a mathematical formula to explain phenomena detected by gravitational lensing that suggests that objects with mass exist as determined by gravitational effects on visible celestial bodies yet the matter causing the gravitational effect cannot be seen by the naked eye.”

Until now. Kinda sort of.

Scientists estimate that about 25% of our universe consists of dark matter. That’s quite a bit of stuff out there that we have no idea, really, where it is, what it’s purpose is, what it’s doing, or what it looks like.
Some scientists believe that there are dark matter superstructures that act as connective tissue between galaxies. The gringa wonders if that means that the universe can get arthritis? But I digress. Back to the real stuff. Does this composite image prove the connective tissue theory to be true? Do we now know where dark matter exists and what its purpose is?

Since dark matter is kind of like a space ghost, neither reflecting or absorbing light, it’s impossible to see it. Maybe. Scientists may have devised a means to create an image using the same technology for detecting it: gravitational lensing.

This new discovery may be dark matter’s incognito existence Waterloo, literally. You see, it’s a former grad student from Canada’s University of Waterloo who has developed the technique to create an image of dark matter. As gravitational lensing displays the warping effect of dark matter on distant galaxies, images from the Canada-France-Hawaii Telescope captures images while it surveys the skies. From these images 23,000 pairs of galaxies were selected to create a composite image of dark matter.

In the feature image you see the white circles that represent two galaxies. You see all that red stuff surrounding them? Yep. That’s the connective tissue of dark matter. So, basically the Milky Way is like an egg yolk with a partner galaxy connected to it by dark matter. Next time you order a breakfast of 2 eggs sunny side up, just think of the great cosmic breakfast entrée where you live.

Source & Image Credit: Phys.org
Video Credit: United News International

Persecuting Science Kills Nations


Respected physicist Neil deGrasse Tyson gave a very grave status update for the United States recently. He made the following claim while delivering a warning alongside his claim:

“America is already kind of fading… there’s no future [for a country that ignores science].”

Is Tyson simply a disgruntled scientist complaining about the position the Trump administration has taken with regard to climate change or is he on to something here? Let’s look at history. That is, after all, one of our greatest teaching resources.

Muhammad ibn Zakariya Razi: Simply known as Rhazes, he was a pioneer in medicine in the Baghdad of the late 9th and early 10th centuries. He followed the rational and logic methods of Hippocrates and penned a comprehensive medical tome, Continens Liber. The book made him famous but not for the reasons he had probably hoped for.
A Muslim priest, offended by his work, ordered him beaten with the work’s manuscript. The abuse was so severe he was blinded which put an end to his illustrious medical career.

Was religious motivated persecution of Baghdad’s science community the beginning of its end? During the Abbasid caliphate, also called Baghdad’s “Golden Age”, the Islamic theocracy was churning out the world’s greatest scholars, mathematicians and scientists of that time. But as Sunni ruled Baghdad was achieving glory, Shiite Muslims were slowly simmering in their religious rivalries. Rhazes was one of the first casualties of this in-fighting.
The battle of religious ideology supremacy would lead to a weakening that made Baghdad vulnerable to Mongol aggression which eventually destroyed the city a couple of centuries later. But the short-sighted Shiite’s could not see this coming. They were so intent in destroying their rivals, the Sunnis, that they did not consider the consequences of their actions.

You see, the crazy thing is that the origins for the religious rivalry had nothing to do with science. It was all about the rights of succession for religious leaders, whether they be elected (Sunni belief) or a descendant of Mohammed (Shiite belief). Since patronizing the scientific community was a source of strength for the Sunni faction, the Shiite’s strategy for supremacy was to destroy the Sunni’s source of strength, the scientific community. But by persecuting the science community, the Shiite’s also brought about the entire destruction of Baghdad’s empire.

Michael Servetus: This Spanish physician’s work included a book that promoted a reformation of the Christian religion that was dominated by the Catholic Church during his lifetime in mid 16th century Spain. This earned him the label heretic. He fled his native country to avoid imprisonment and torture, the hallmarks of the Spanish Inquisition. He arrived in what he thought would be a more tolerant nation, Protestant dominated Switzerland.

However, it wasn’t just Christian Catholics who wanted to see him dead. John Calvin, who himself was a reformer of Christianity as a founding father of the Protestant Reformation, considered this medical scientist such a threat to the power of the church that he ordered the arrest of Servetus.

You see, although Europeans were being terrorized by Christian leaders of the Spanish Inquisition, Nordic peoples were equally terrorized by the Protestant Inquisition that was going strong in Switzerland. Eventually Servetus was captured and tortured. Religious leaders crafted quite a public spectacle, burning him at the stake with Lake Geneva as the backdrop. Stoking the fire? Copies of his book.

So, if the 16th century is noted by historians as the era of Spain’s Spanish Inquisition, what happened in the next century? Did persecution of scientists make the nation greater or worse? Historians describe the 17th century as an era of Spain’s decline. So, yeah, kill off your scientists and expect your country to fail.

The gringa could go on and on recounting the many scientists throughout history who have endured periods of purposeful persecution from governments of religious extremism that eventually led to the destruction of a nation. The dear reader can do their own homework on the life and times of scientists and their respective countries. Why not start with these:

  • Galileo of 17th century Italy
  • Henry Oldenburg of 17th century England
  • Antoine-Laurent Lovoisier of 18th century France
  • Gerhard Domagk of 19th century Germany

So what should be expected as the anti-intellectual, religious extremists of the Republican party transform the US? Well, right now we are at the brink of what will become known as the cliff this great nation falls off of. Anti-intellectualism will inevitably lead to a less informed democracy. A nation of people who believe false science are incapable of solving the problems that will plague them, whether it be pollution, disease or social conflict. Without the right information, all decisions are the wrong decisions.

What happens then? If religious extremism prevents an embrace of the truth, then when solutions fail blame must be cast. The US can expect, then, a rash of scapegoat classes to be created and systematically persecuted for all the ills in society.

As other nations cultivate their own science communities, eventually one will emerge as the leader, filling in the vacuum the US leaves behind as it abandons real science. We already see this happening with the nations supporting the Paris Climate Agreement. This will result in the US losing its competitive edge in the consumer markets dominated by science and technology. And what can we expect that to do? Affect the US economy disastrously.

So, as the US denigrates, denies and persecutes science, it is stabbing innovation and hope for the future right in the back. The Trump administration may be the catalyst for a destruction the nation cannot recover from. Consider what can happen in 4 short years of no innovation or inspiration. Scientists who cannot pursue their passions, have their work published, implement their methods and are maligned for what their research indicates will go elsewhere. And once settled in a new home that welcomes and supports them, it is highly unlikely they will ever come back.

An exodus of talent will make America’s science community a veritable wasteland not just of scientific talent but of the backers who fund their work. Investors will then put their money where it will be used in the research and development of tomorrow’s technologies that will sell big.

The Trump administration is initiating a chain reaction of scientific abandonment that is not just ideological. Scientists who want to be empowered to fulfill their potential will go elsewhere, hand-in-hand with those who have the money to make their dreams come true. In the next few years the landscape of science and technology will change. Other nations will be developing the cures for AIDS and cancer. A new Silicon Valley will emerge as California’s own becomes a ghost town. Tyson is right.

 

Sources:

Live Science

Thought Co.

Wisconsin History

Annals of Clinical & Laboratory Science
Image Credit: Boise State
Video Credit: StarTalk Radio

Slingshot Time Travel With Cosmic Strings


If you have read sci-fi novels or watched sci-fi flicks, then you have heard about cosmic strings. If you have dabbled in physics and astronomy you have probably heard about string theory. But, really, what the heck is a cosmic string? What do they do? Do they really exist? Are they space garbage that can be recycled for another purpose?

You know how Enterprise always seems to encounter some kind of space “anomaly” that causes all sorts of mayhem and the crew doesn’t know what the heck it is? That’s pretty much what life is like for space explorers now. We really have no idea what kind of stuff is out there in outer space. Cosmic strings are just one such anomaly.

Cosmic strings exist. They’re weird. They have different textures. They have walls that define their domains. They’re powerful, possibly containing the energy-mass of our Sun within a tube about one billion of a billionth the size of an atom.  And scientists don’t know much more about them.

The gringa supposes that it’s a good thing that there are not very many of them, as far as we know. Running into such a weird anomaly could be disastrous for astronauts that don’t know what they are dealing with. But some scientists are not above guessing, er, um, theorizing about cosmic strings.

Physicist J. Richard Gott introduced the novel idea of using cosmic strings for time travel. Scientists suspect that these stringlike objects had something to do with how the early universe formed. They are left-over tidbits whose job is all done. Or not. Perhaps they could be upcycled to warp space-time near a black hole making time-travel possible. Is Gott for real?

Cosmic strings are skinnier than an atom. And they are taut, like a rubber band, because they are under immense pressure. So, just like when you launch a spitball by pulling back a rubber band, Gott thinks the same concept could be applied to cosmic strings. But we wouldn’t actually strap a spaceship to a cosmic string and slingshot it across the Universe.

To make Gott’s theory work, he proposes relocating two strings so that they are close together. Because of the great pressure they are under, putting two close together would create a massive gravitational pull on anything that passed near them. The strings would basically suck in a spaceship at such an incredible speed that the crew would experience time dilation.

Time dilation is a fancy way of saying you have changed the passage of time. On Earth, six months may have passed. For astronauts on a cosmic string launched spaceship bound for Mars, the trip might only take one month. They return home to find everyone a couple of years older yet maybe they only experienced the passage of a few months. Yep. Cosmic strings are weird.

The gringa can imagine the rich and the famous exploiting cosmic string travel as the next great fountain of youth treatment. Maybe we could blast across the galaxy our worst criminals on multiple trips. This could essentially leave them for the next generation to sort out. We could find all sorts of crazy uses for time dilation travel.

But Gott’s theory goes further. If the strings were positioned near a black hole, he thinks we could warp time-space and create what he calls a “closed timelike curve”.  This would make true time-travel possible. Currently, time-travel is theorized to only be possible to make trips into the future that are one-way. A person cannot travel back into the past, only forward into the future. But Gott thinks he has found a way to yesterday.

The compounded effects of gravity on a spaceship by two cosmic strings and a black hole could create a loop with the cosmic strings. This powerful loop would propel the spaceship back through time. But there’s a catch. To re-visit a previous birthday just one year prior, a loop of cosmic string powerful enough would need the mass-energy of our entire galaxy. So, basically you sacrifice the life of everyone and everything in the present just to return to life of a year ago. Not so sure it’s worth it. Today doesn’t seem so bad.

Sources:  Astronomy Cafe

Science – How Stuff Works

Science Daily

Image Credit: Pinterest

Video Credits:  FloatingUniversity

National Geographic