Is Time Travel Really Possible?

We've all wondered at some point whether time travel is actually possible like it is in the movies. Second Thought is here to find out!

Time Dilation Calculator:

Sources and Further Reading:

Much of the research on paradoxes was compiled by one of my very helpful volunteers: Alan Le!

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[bbyanttt]

imagine time traveling to the past just to kill your great grandfather, then when u kill him, you realize your adopted

[saeyaa]

*I'm not sure if i just gained braincells or lost them*

[dragonslayeromega]

Me: *WENT BACK IN TIME TO KILL MY GRANDPA*

Me “I’m still alive?”

Grandma: *SWEAT INTENSIFIES*

[ezachleewright]

Woah, Second Thought used to be a science channel? No way....

[bobbysworldrox]

“We all have our time machines, . Those that take us back are memories...And those that carry us forward, are dreams.” ― H.G. Wells

[r_i_t_h_u]

So in real life in earth time travel is happening when you set alarm for 6:00 am and wake up and after a few seconds it's 10:45 am

[shaumiksaha]

*I wish my science classes were this interesting!*

[rroselandd]

When he started to say, "in the film..." I IMMEDIATELY knew he would talk about Interstellar lol

[axtumn]

I think I just grew five more brain cells

[Tbeast_TM]

When i go to bed im time traveling to the morning

[shawncimonetti]

You should reupload this video in a couple weeks, cause some serious Déjà vu...

[bemil]

Imagine going back to when you were a little child and get to experience your childhood again

[RadiumLive]

Damn. Well we figured it out. This video was published 27 years ago. Good stuff.

[xpeter]

these types of videos make me feel intelligent af

[enslaved_depresso]

It's nice to come back to this video every once in a while. Where you've come from and where you are now. I can't even begin to imagine how scary it was to change your direction but I'm hoping it's working out well for you. Take care Second Thought Person Man, Take care

[Kyo_theTowaSimp]

I like how this is the only Second Thought video that shows up in my recommended feed. Nice algorithm, YouTube.

[randomdude]

You kill your grand father but still you're born in that timeline


*Grandma needs to answer some questions*

[hi.]

Well, according to Avengers Endgame:


*There is no grandfather paradox*

[aom]

well, all I know is this video really fucked my brain lol

[bob]

So cool how based you’ve become. I first came across you from videos by these. It seems our radicalization happened more or less at the same time, and I’ve been able to follow you all along the way. Love your channel, happy this old gem came up in my recommended.