Is Time Travel, Especially Into the Past Possible? | Matt Szydagis | TEDxSchenectady 

If I could time travel, I would go back to June 2019 so I can spend more time with my mom, she passed away less than a month ago and while I saw her a lot of times, we never spent quality time together, not unless we go shopping. I wish I can just go back and show her how much she means to me and thank her for being the best mom taking care of me. Edit:Thank you, all of you for the kind words, I really appreciate it.

What do we want?? TIME TRAVEL!! When do we want it??? IRRELEVANT!!!:

I’m here because I lost my son of 17 years old due to suicide on September 23, 2019. On my desperate moment in agony I cry and ask myself how can I go back in time and not leave house that morning and stay home with him.

I'm actually working on it myself.

my personal theory is that if you want to travel to yesterday and meet yourself, then yesterday you should've met the you that came from the future, only if you travel in the same universe.(i'm no scientist but i love this kinda stuff)

My neighbour knows how to time travel onto the future. When i upset him one day he said to me if you carry on i'll knock you into next week

If you understand what he is talking about, you are a legend.

What a really enthusiastic guy. He has got a passion for this. Good luck for the future. Enjoyed this video

Who's watching this in 2020?

If we could ask a dog what time it was... He may reply, "It's now, it is always now"

If time travel evers exists in the future, then it will have always existed..

If I can reset my whole life and fix every mistake ever made, I'd be genuinely happy for once.

There must be time travel they obviously went back in time to get the presenter that microphone from 1980. Somebody get that man a pop filter!

i donot know about others but i am an undergraduate physics student.I might not be a bright mind but surely i will devote my life for discovering the probability of time travel.

I like his argument. It's what I have been saying for a very long time. Ancient Greeks might have thought you cannot fly, yet here we are hopping from continent to continent. They certainly would not have perceived a rocket leaving earth and venturing into the vacuum. Those assertions were based on existing science at the time. Our assertions are limited by what we understand now.

Time travel into the future is definitely possible. You're doing it now!

it's POSSIBLE, you'll just be on your 'new parallel altered universe', or your 'new present universe' when you go back; but you'll be gone forever on your 'real previous universe'.

this guy sounds exactly like Marty mcfly

I want to go back to mid 2018, even if it means ending up in a parallel universe which is a mirror duplicate of our own. 👍

Anyone watching while in quarantine to go back in time?

I think every one of us went back for at least few seconds, sometimes years back,but we just never picked up the signs.

I was waiting for a simple yes or no

The answer is: "yes" - clicking on this video instantly transported me back 2 years in time.

We need to focus more on time travel to the past and create a timeline where the problems on earth didn’t happen

Great talk and well presented. Thanks! :)

Imagine if we can create our own personal timeline where you can do anything in it and influence evolution itself while never affecting anything in this timeline

Now I understand why Flash needed to run in a circle to jump through the wormhole to travel back in time. He was spinning around the cylinder. And it makes sense why Reverse Flash created the Tachyon Device. It all makes so much sense now. This became my favorite TedTalk yet. 😭🙏🏽

AM I THE ONLY ONE THAT WANTS TO GO BACK TO THE PAST TO 2002 TO WATCH SPIDER-MAN IN THEATERS AND 1978 TO WATCH HALLOWEEN IN THEATERS

I think understanding the rules of chronology and placement and when and where you'd have to go to time travel is something even just any bright person could probably eventually come to realize by thinking long enough. It's how to actually propel a physical essence through a non-physical power that essentially connects everything in all of reality that we can't figure out yet.

me: has been told from multiple videos that I can't time travel to the 80's since I was born in the 90's, which makes sense. me: continues to watch more time travel videos in hopes that one of them is going to tell me what I want to hear.

My favorite part is where he says “ extrapolate “.

time travel is one of my favorite subjects and dreams. I will always want to travel back to the 1980's, and thats the first place id go if we ever figured it out. Remember, flight was thought of as literally impossible by top scientists just hundreds of years ago. To just say time travel is not possible is a bit narrowminded.

Correction: Running faster than the speed of light does not freeze time. Everything just appears to be frozen, but in reality your just moving so fast that eveything around you appears to be frozen in time. However if you stayed in lightspeed time and just payed attention to someone walking. Well you would notice the movement they are making, however for you it would appear to be happening very slowly, but that's only because of how fast your moving.

i time traveled into the past once...... i flew from Australia to Los Angeles & i arrived in L.A. at a time that was before the time i took off in Australia. INTERNATIONAL DATE LINE.

Absolutely.... the concept translates much more simply when we remember that time is a concept and simultaneity is real..!

I’m watching this in 3020 directly from my brain

Glad you mentioned Dr. Mallett in your talk.

If time travel ever does exist i want to travel to the 60's. I missed it as i was an 80's child

Love how the title emphasizes travelling into the past. As if travelling into the future wouldn't already be enough haha

Got to love when people always talk about going to the speed of light that we need infinite energy to push anything with mass there but never think if you can achieve light speed you would have real dampening systems shields and if you had that you would have anti gravity systems and mass would not meen anything so to achiev light speed or beyond would use less energies

Yes... it’s okay, I’m here after EndGame too.

You guys must watch New York Post “The Basement Office” Ep 6 about Sergeant Penniston experience. It might be us from 8100 all those UFO sightings.

If the future holds the ability to travel through time, it seems clear that no one would have the means to change past events. This would be apparent by the historical reality we all now share. And if someone was able to alter the past, nobody would know it had been changed except the traveler because all we would know is what we know. How a path had been diverged would be unknowable to us.

We are all time travellers, in fact. We just have not learned how to "get off the time train". Please, remember that going into the past\future... is still experiencing the present timeline of your life (self experience)!

My theory is if you travel back in time, you create an alternative reality/timeline than branches off from the point you traveled to and the original reality/timeline remains unchanged

Just so I'm clear on something.... A flux capacitor will or will not work?

Thank you TEDx Talks sir, thank you Mr.Matt Szydagis sir.

Take a shot every time he says "extrapolating". Awesome talk. Thank you. Fyi, i always thought the farther you go into the past the higher in the air you would end up. And the farther you go into the future, the deeper in the ground you would end up. True? Anybody?

If time travel is possible, it will only be forward or backward on the timeline inhibiting any changes. If not, any travel will end up in the wrong place; we are moving with incredible speed through the universe. Even subatomic particles will cause paradoxes otherwise: what happened if I today detect a subatomic particle in my detector and tomorrow decide not to send this particle to the past?

Reminds me of the novel "Lightening" by Deane Koontz. Awesome read. 👍🏾

If I could time travel I'd go back to 8th grade and do hs over again, but wanting to know what I know now.

We are forever moving forward in time no matter what time u send yourself to

I believe transportation is more possible than time travel. Apparently when we look at distant planets we only see what they used to look like. With transporting ourselves to another part of the galaxy we could look back in time if we could focus on earth and alter the distance to view any time in earths history.

Nostalgic Memory is the name of the time machine I use to travel into the past, and it works flawlessly. Should I need to travel forwards in time there is no better machine than patience. Love and respect to all without prejudice from the heavenly kingdom of Winston McKinney.

I just wanna advise my younger self :(

He even sounds like george mcfly! Liked.

This can actually tie in with singularity

If time travel were real I would go back to the 2010s and live the life I wanted

I use to watch this when i was kid and wow he was on point back then .

You should watch the Netflix show called Dark. It's based in Germany and totally goes along the third type of time travel you explain with information without an origin which creates a infinite loop. It is pretty spot on and gets more fully explained in season 2! (I just switch it to English dub)

If you travel back in time wouldn't you also have to move the entire universe? The earth, planets and the universe around them are in a constant state of motion and expansion. It would be quite the surprise to go through a time machine, only to find out the earth isn't where you thought it would be.

I love this guy. Genius is on the spectrum.

UFOS could be Time Machines from The Future.

He seems to have missed the nature of the 'paradox' in the twin paradox. He was describing simple time dilation. The paradox arises when one considers that each twin, relative to the other, is stationary, and sees the other as moving. Therefore it would seem that each thinks the other is aging slower than himself. Clearly they can't both being aging slower than the other. And THAT is the 'PARADOX.'

If we can ever go back in time I’m going back to when my dad was a kid bc that’d be cool

I have seen some of my own. I'm gifted as well with outerbody experiences .

One strategy might be accomplished by which to achieve Past revisit. This would include outer as well as inner spatial/volume recorded as multi-idents physically as well as movements, etc. After which in a 3D printer reconstructional renditional sense where any space equipped to handle this extremely intricate replay would sense this fluid reconstruction as authentic, real past events occuring alongside a further sense this 3D'd past is indeed unfolding and though factually one would experience this renumeration as moving forward toward the present they never actually left. Even having and retains abilities to interact with that recorded block from the past, though obviously not interfering in any way that could change the future.

Man, I just can't get through this. He's all over the place.

This guy looks like Rodney from Stargate, with a voice like Fry from Futurama

The biggest problem to time travel is identifying a location in space-time. People often think of a machine being at the same location but it’s not. The earth is moving around the sun, the solar system around the galaxy, and the galaxies are expanding apart. A single place in space is near impossible to maintain and thus virtually rules out time travel as it pertains to gravity and special relativity. On the other hand entangled particles (QM) seems to provide some potential because experiments have demonstrated that they are connected at a speed that is instantaneous (faster than they can measure at 10k times the speed of light.) To me this suggests a connection outside of space-time (possibly a dimension) where the past and future can be connected. The question then becomes, can enough particles be entangled in a fashion that allows a person to step into (and immediately out of) that dimension. I suspect that the interval traveled would be based on the vibration frequency of the entangled particles. Honestly, the concept of teleportation. Seems more realistic than time travel. Of course travel to places where time is moving faster or slower would seem to be the best opportunity to go into the past or future. Outside the galaxy seems like it would be much slower and towards the center of the galaxy would be much faster. So, travel to that place instantly, wait a certain amount of time and then travel instantly back to earth. This combines relativity / gravity and QM to achieve. Plus, if you believe the soul is real, would such a journey disconnect a person and soul for a wide variety of reasons. Who would want to go first?

I am hoping to finish this video later.. I do not know the direction this video will go, but I am going to add my thoughts. I have been ripping this apart since I first saw Back to the Future. Now, 39, I have concluded that the concept of Humans traveling through time, this would have HUGE effects on the universe.

I make it a habit to travel back in time one hour every year in the fall and then ahead one hour in the following spring.

I traveled almost 2 minutes in time watching this already

I'm interning at the physics group he is part of....super interesting guy...took us out to pizza and asked me to come to grad school where he is at. I will be applying. I'd be honored to have him as my advisor

neal degrass tyson had the same idea of using light to go back in time when his dad died of a heart condition. much love to those whom lost a love one. you may not be able to travel in time now but can make an impact to save others now. R.I.P to those lost.

Negativity energy, and dark matter is hands down the most mysterious thing in the universe.

Time is not about mass, so much as data sets and the arrangement of particles. It should be easy to travel through the timeline of a universe that you did not originate from, and in a multiverse that could be a matter of altering atomic vibration to shift to that other universe. If we live in a holographic universe or simulation it gets even easier, since it would only be a matter of altering the constructs of the observer much in the way remote viewers do.

Thank you Matt, that was interesting.

If I could time travel I would go back to the early 2000’s and live a day in the 2000’s again. I miss my childhood

If someone finds this in 2034 I'm a time traveler from 2033

A simple solution to the grandfather Paradox actually has to do with dimensional rifting I can provide details in the future if requested however further research is required for me to justify the theory

0:07 The Duchamp portrait is sideways in the picture. I am very discouraged about continuing the video, but I shall give it the ole' College Try.

If you change something in like past like if you move a pencil 1cm along, that could make the person sitting down take longer to pick up the pencil then getting less work done and his teacher noticeinge he got a question not done and then he takes different steps which could make him think about of something else

This guy is brilliant

Consciousness can travel into the past and witness happenings at any time and place in history. The consciousness can also go into the future.

Time travel to the past would mean: - objects that have decomposed or dematerialized are somewhere still intact, like the hamburger you ate yers ago. - events that have taken place are still taking place in some dimension, and they will have to repeat constantly. - our conicious experience of events should also be be repeated contsantly. When I meet myself from 20 years ago, the same person with the same consiousnes is confronted. This means two sets of thought proceces from the same person are going on at the same time. Wil my person be duplicated?

If you could travel back to the past and see yourself as a 10 year old child. The moment you touch the hand of your former self, to shake hands, this would create an astonishing paradox. You would both erase one another by attaching to each other’s subatomic particles and just as matter and sub matter would annihilate each other, thus you in your present form and you in your past form would destroy each other’s sub-atomic structure.

This video is just a bunch of atoms talking to an even larger bunch of atoms.

I traveled back in time on LSD

Man time travel has been existing for a long time, this guy must have just saw the movie I saw about the guy that went back to the Future a bunch of times I forget the name of the movie but I saw it actually happen and you can even watch it yourself because someone taped the whole thing.

The past exists solely in our memory and the future exists solely in our imagination. Given they both exist in the mind, how do we travel to a place that exists solely in the mind?

I wish they had time travel last night when I missed the Beer Store by five minutes... Phooey...

If time travel is possible I’m heading straight back to 2012

Everything you see has already happened. It's just the light reaching you a few nano seconds later. So you are essentially living in the immediate past. And if you could accelerate at more than the speed of light away from the light source, you'll eventually start seeing things as they were 1 year, 10 years, 100, a million years ago.

Also sounds like a good movie idea. Only if there was a 360 camera in multiple points above the ground that could record everything around it for 50 years for example then being able to digitize them into a vr world where we can choose at what time to start within the recorded 50 years

His voice sounds similar to Philip J Fry from Futurama, how fitting...

If you really want to know if time travel is possible, send me a message and I will tell you all about it yesterday...

Carlo Rovelli describes time as a heat phase transition. Heat changes matter. It changes you and your surroundings, and what you experience is energy transitioning and transforming matter. There is, based on this, one direction for existence; forward. To me that's why this is untrue.

2nd law of thermodynamics ... it is impossible to go from your present to the past, but possible to go into your future if you ran faster than the system that you belong to!

Is there a reason to travel into the past that isn't tied to unresolved resentment about a mistake, or nostalgia?