Neil deGrasse Tyson Explains Time Dilation

"If you can't explain it simply, you don't understand it well enough." Neil does it effortlessly. Amazing video.

To me, the craziest thing about this is how Einstein conceptualized these theories in his time. I wonder how much different things would be today if he had never lived and we had to wait 50 years for someone to come up with these in say the 1950's or 1960's. Einstein is the GOAT in science without a doubt.

Imagine having a teacher like Neil for all of your school and university stages.

I consider myself to be smarter than the average bloke, but I am constantly impressed by Chuck’s lines of questioning AND his snappy comedical quips. His contribution is what makes the format of Star Talk so succesful. Fascinating and entertaining at once!

No matter how many times I hear this explanation I still can't wrap my brain around it.

really cool to see chuck’s aha moments, and the depth of his questions. Thanks chuck for translating for us!

I understand why Flash sees things in slow motion

I said this to a friend some years ago. On a hypothetical world moving much faster than we are through the universe, if they were to look at us through a telescope, they would see the whole of human existence has already passed by. On a hypothetical world moving more slowly, it hasn't even begun. If you take that concept and stretch it out, you see that because of the way time works in our universe, it preserves a perfect copy of our lives. In a very real sense, each of us has always existed, and always will exist.

Chuck Nice is smarter than all of us think he is. He really understands and questions things we wouldn't. I love it

After seeing how much Chuck figured out and understood on his own, it's starting to look like he should be in line for an honorary degree! He has had the best teacher... it was really fun watching Chuck realize he knew what was going on and paraphrasing/explaining with glee. This was fun to watch.

Mind blowing stuff. I recently watched "Interstellar" and so many references are made to Einstein's theories such as time dilation and gravitational effects. Great film!

These two need a show. A REAL show like late night.. Absolutely insane. And this is why I love science..

Even though science wasn't my thing in college, Neil breaks this down in a way that I can understand. Mind successfully blown.

I remember as a teenager learning that time travel is definitely possible, but only going forward in time. It's just a one way trip. Gives new meaning to "I'll hit you into next week". It also boggles the mind that if a photon has no time, then a light-year really is extremely large.

I feel so privileged to be able to enjoy the ramblings of our greatest minds at any time. TY Universe, Chuck, and Neil.

I am always obsessed with space and future tech type concepts. Time Dilation has been something I could never really grasp much until this video. Explaining how the photon from 30,000 years ago doesn't experience any time itself made so much sense, it's a good comparison to show why people experience less time when traveling near that speed.

I’ve honestly never wondered if light aged,or not. But finding that out that it does not,is a mindblower.

"The photon has no knowledge of that trip." I can never un-hear that. Now, I too will lay awake, staring at the ceiling... knowing the light from my neighbors porch light, the light from the moon, the light from Saturn, the light from the center of the Milky Way and the light from the edge of the known universe all reach my eye in exactly the same amount of time (relatively speaking from the photon's perspective)...

Love these videos as these extremely complicated topics are made understandable ! Thank You for Posting 🙂

‘Time Trap’ is an underrated movie with a nice plot based on time dilation.