Can time machine be made || Why Don't Time Machines Exist Already? || Time Travel in Fiction Rundown

  Why Don't Time Machines Exist Already?

Hey there and welcome to Poruk private limited . Have you ever wondered why we don’t have time machines already? Surely with all the technological wonder of today, someone would have figured out a way for me to go back in time and ask my animat or why he didn’t give me bigger muscles. Is time travel even possible? Let’s see if we can go back in time andconvince everyone we’re all named Calvin Klien… we just need to get a DeLorean first. Can we time travel? Sure, we’re always doing it! I mean you travel in time whether you’rejust sitting there, walking the dog, or even taking a well-deserved nap! But I know, I know, that’s not what we’rereally asking. We want to know if we can travel in time faster or slower than we typically do, or if we could potentially even travel /backwards/ in time. The answer to at least part of that is a bigol’ yes! We can relatively change the speed at whichwe travel through time. Popularized in 1905 by the great Albert Einstein,the theory of special relativity determined that time does not pass at the same rate foreveryone. Through a phenomenon called time dilation,an observer moving relatively fast would measure time passing more /slowly/ than a relativelystationary observer would. This means that in a relative sense, timepasses more slowly for Usain Bolt while he’s running a race than when you’re chillingat home, watching a brand new episode of Life Noggin. This is also why an astronaut sent into spacewould age slightly /slower/ than their twin sister down on Earth. It’s not just simply speed though; moregravity also makes time slow down as well. This was determined from Einstein’s theory of general relativity when he realized that massive objects cause a distortion in space-time. Clocks closer to a massive object, like theEarth, would seem to tick more slowly than clocks further away. That’s why your feet are probably a supertiny bit younger than your head is. That is, unless you’re doing handstandsall day. Keep it up over there, Young Ears! But what about traveling backwards in time? While it might not be the best to completelyrule it out as a possibility, quite a few scientists believe that it could never reallyhappen. 

Stephen Hawking is one of the brilliant scientists that has thought we can’t travel back in time and he threw an interesting party togive validity to that point. He threw a big party, but only public is edit /after/ the party was over. In theory, if people could travel back in time, then they could have heard about his party in the future and traveled back to attend the experiment in time travel… but nobody showed up. While this obviously doesn’t prove thattime travel to the past isn’t possible, it was quite an interesting experiment. I don’t know about you, but I would havetraveled back in time if I could to hang out with /the/ Stephen Hawking! That said, there are some that believe timetravel to the past might be possible utilizing some super awesome things, like worm holes for instance! Not to mention, there might be a way to travel back in time using certain laws of physics or sciences that we’ve yet to find! Maybe this weird thing holds the answer? I still don’t know what it does! 

 

Time Travel in Fiction Rundown 

For ages I’ve been wanting to make a video analyzing time travel in fiction – not the magical or physical mechanisms by which the time travel is supposedly achieved , but rather, the different ways time travel can influence causality (and thus the plot) within the universe of each story. Needless to say, there are spoilers ahead! Let's start with Ender's Game by Orson ScottCard – time travel in this book is actually 100% realistic: the characters experiences lower passage of time when they travel close to light speed, allowing just a few days ormonths to pass for those traveling while years pass on earth or other planets. It's traveling forward through time like wenormally do, but at different rates. This kind of time travel doesn't "change thepast" or allow characters to make different decisions than the ones they already did – it'sall one consistent historical trajectory. The original Planet of the Apes film is similar,where astronauts experience extreme time dilation and then crash land on a strange ape-ruledplanet that (major spoiler) turns out to just be earth in the distant future. But what about actual time-travel time travel? Well, I would say there are two big distinguishingfeatures between different types of time travel in fiction. The first is whether or not the time traveleris there when history happens the "first time around" – that is, is there a kind of "self-consistency"where, since time travel takes you to the past, when the past happened the first time,the time-traveling version of you was always there to begin with? Or does the very act of time traveling tothe past change what happened and force the universe onto a different trajectory of historyfrom the one you experienced prior to traveling? And the second distinguishing feature is:who has free will when somebody is time traveling. Like, whose actions are allowed to move historyonto a different trajectory, and whose aren't? 

One of the simplest time travels is "do-over"time travel, where you essentially get to re-play history starting exactly as it wasat a certain point, with the only caveat being you remember your experiences from alreadyhaving tried various possible future timelines (while no one else does). It’s essentially like playing a video gamewhere you can start a level over with the foresight of what you did wrong the firsttime. For example, in Groundhog Day Bill Murray'scharacter relives the same day over and over again, and though he can make different choiceseach time, he always starts back at the same point (except with new memories of his previouschoices). That is, until he figures out the one exactset of choices that frees him from the loop. I consider "A Christmas Carol" to be in thisvein, too, even though it may not seem like time travel. But because Scrooge gets to visit the futureof his current timeline, even though he has no ability to affect the timeline directlywhile "visiting", he can still change his actions in the present based on what he learns,essentially getting a “do-over.” The video game Braid is built on the ideaof “do-overs”, where you get to rewind a few seconds and try something different(though there are some things that are immune to going back in time and don't "rewind",which is what makes the game interesting). Braid also has another kind of time travel,where you go back to your past as a separate individual, and the past version of you isthere with no free will, just doing exactly what you did the first time around, while"time-traveling you" can change the course of history. This is also how the video "Clock Blockers"by the Corridor Digital youtube channel works. And then there's time travel where the veryact of going to the past or future creates a fully new trajectory of history becausetime-traveling you weren't there the first time around, and now you are. 

This includes the typical "anything goes"time travel movies like Bill & Ted's Excellent Adventure, Back to the Future, Star Trek FirstContact, and so on, where you can kind of instantly jump back and forth to any pointin time you want, potentially resulting in multiple versions of yourself. From a causality perspective, anything youdo in the past (and even just the act of going back in time) redirects the course of historyonto a new timeline – in Back to the Future, Marty's interference with his parents fallingin love results in the timeline of history being redirected towards a version of thefuture where he doesn't exist and so he starts to disappear from photos and real life. And even after correcting that major deviation,his interactions with his parents while he’s in the past result in them being very differentpeople when he returns to his present time; he accidentally caused history to progressin a slightly different direction. The movie ”Looper" is similar, but there'sa little more circularity because when you jump to the past, you cause history to branchonto on a trajectory where, in the future, the younger you also goes back in time thesame way you just did. Both you and your past self still have enoughfree will to change that forward course of history, though, which results in weirdnesslike you getting new memories when your past self does things you yourself didn't do, orif they lose a body part, suddenly you'll lose it too, replaced by an old scar on yourown body. So, changes to the present affect not justfuture timelines, but also future timelines that wrap back around to the present! The indie film Primer is in the same vein,except that it takes the plot device of time travel to the extreme, with time travel withintime travel within time travel, time-traveling characters interacting with other time-travelingversions of themselves, bringing time machines with them to the past inside other time machines,and so on. But beyond the complexity, there are two thingsthat make Primer stand out: first, time travel to the past isn't an instantaneous jump, butactually takes time: to go back 6 hours, you sit in the time machine for what feels like 6 hours. 

And time travel can't take you back to a timebefore a given time machine was initially activated, since of course, the machine canonly be taking you back in time inside it if it's turned on, so the first time it wasturned on is the farthest back in time you can go. There's a nice logic to it. Which brings us to perhaps my all time favoriteof all fictional time travel: Harry Potter and the Prisoner of Azkaban. It's an "instantly jump back in time" kindof time travel that doesn't actually generate any new timelines. It manages that because in this universe,while you were experiencing your initial, pre-time-travel passage through a particularpoint in history, your "time-traveling clone" was also already there, doing everything you’lleventually do when you time travel yourself. For example, Harry and friends are saved fromdying by their time-traveling selves, the first time through that timeline. It makes so much sense – if you go backin time, you really and truly were present at that point in time all along! This also means that during the period ofoverlap, the time-traveling you has no actual free will, since everything you do has insome sense already been done, which Harry comprehends when he realizes he has to savehis past self because he was already saved by his future self when he was in the past. I think I love this kind of time travel becauseit manages to be logically consistent: it's time travel to the past where you can't changethe past, because the past already happened. And there's only one timeline – the onein which time travelers arrive from the future, do stuff, and at some later date, leave togo to the past. Logical consistency is a primary thing that,you may have noticed, I think lays the foundation for good time travel stories – not becauselogical consistency is important in an of itself, but because, most of the time, inorder to care about the characters in a story, we have to believe that actions have consequences. If everything is just a meaningless series of events, then we almost don't have a story. So it's really helpful if there are rules by which the universe of the story functions, whatever those rules may be.  So what do you think? Is time travel to the past possible?  Let me know in the comments below! Make sure you  come back every day for a brand new article. As always, I’m Aniket chugh and this is poruk private limited. Don’t forget to keep on thinking!  

Can a time machine be built?

Is time an illusion?

Image result for time machine theory

According to theoretical physicist Carlo Rovelli, time is an illusion: our naive perception of its flow doesn't correspond to physical reality. ... He posits that reality is just a complex network of events onto which we project sequences of past, present and future.

Who is the first time traveler?

 Did you know that Russian Cosmonaut Сергей Авдеев ("Sergei Avdeyev") is considered Earth's first significant time traveler? During his active years as a cosmonaut (1992-1999), he set a record for cumulative time in space.

How do I become a time traveler?

How to become a full-time traveler? 

 5 ways to make it happen

Step 1: Stop making excuses. You may now be saying to yourself that “I can't just leave and go travel full-time. ...

Step 2: Come up with a plan. ...

Step 3: Eliminate Debts. ...

Step 4: Get rid of stuff. ...

Step 5: Funding your Travel. ...

Conclusion.

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