Physicist Reacts to How The Universe Is Way Bigger Than You Think

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[thatsunfortunate]

Dylan, as a space nerd with no professional knowledge, your content is seriously so so good. I enjoy it more than you could ever know💪🏻

[ivanpetrov]

The end of that Sagan quote is so impactful - "a mote of dust, suspended in a sunbeam" - I fell in love with that description when I heard it.

[GMSOLOS]

It’s crazy that there’s people out there that don’t believe in space. And the scary part is there’s a lot more than you might think.

[Quessir]

I like Billy Connolly's theory about it. That the universe beyond our ability to perceive and understand is something very dull and ordinary, "the leg of a chair or something".

[rasmachris]

The optical illusion that Dylan is referencing is a result of objects being near or obfuscating the moon.
People are only good at judging distance based on relative objects.
So when the moon is on the horizon it seems closer because there are relative objects like trees, signposts, buildings that make it so that you think it's closer than it is.
Your brain does a quick calculation and basically says: "That tree is this far away, so the moon must be this far away, it's really close!"
But when it's in the sky it seems further away because you dont have much of reference.
So your brain does a quick calculation and says: "It's so far away from the trees, it must be higher up and further away."

[Finn_Anwarunya]

I really love the example of drawing dots on a Ballon and blowing it up. I feel likes it's a great explanation of a "2d" version of space itself not having to abide by the logic of thing traveling through space. Also like vacuum is still a medium. "If you're in this space you can only travel so fast, but the universe itself is just a thing that expands however the explosion did. It expands on the terms of a world we don't yet understand. And things.

[willvr]

I always found it funny when we see pictures of what the milky way looks like. Its beauty is as arrogant as thinking we are alone in this universe. We have no idea what it looks like.

[dubbymazlo]

You should react to Sciencephile the AI sometimes. They have quite fun space topics as well.

[shintenkai]

"People have to be more humble"
This is so true, thank you.

[NotRandomGamer]

8:22 don't worry, the cameraman got our backs

[ytj_fraser]

I’ve been waiting for you to react to this video for so long, I was shocked when I saw you did

[primordialious]

Reactor: People gotta be humble.
Average Scientists: Life can only exist in these small conditions.
Extremophiles: Yeah, okay bro.

[odysseyisland]

I like this guy and the way he thinks about existence because we really only know through our own perspective. Like how you hear people saying if aliens did ever come to our planet then it would be the end of us cause they would be hostile. Simply because that's what we would do. Well for all we know alien do know we're here and haven't made contact cause they don't give $h*t about us. Maybe they think we're too primitive and toxic, I wouldn't blame them.

[lapaloma]

He didn't point out the massive miscalculation at 6:26. The car wouldnt need 6 times the age of the universe to bridge the 4, 24 lightyears to Proxima Centauri. It would only need like 45 million years.

[dansantosn]

I got so damn anxious with you moving the cursor randomly all the time during the video lol

[BlackIce]

It makes sense that when its directly above us itd appear smaller because at that point its showing its true distance but on the horizon like you said possible illusion from atmosphere? And also thinking about it space communication is like the old days when messages were sent via horse travel instant communication is impossible so cool and kind of terryfying

[jermsmason]

From what weve seen so far, our solar system is actually pretty unique, out of the 1, 000 or so solar systems weve mapped, only one of them is anything like ours.

[esrohm]

the real question is always what if we actually succede in making a warp drive t move faster than light. we have reached a point where it doesn't seem that impossible and if you "move" faster than light we could go significant enough distances that that other point should have a different observable universe.

[yungpoet]

It freaks me out how small we are we're basically as small as a grain of sand even smaller I'd assume

[vareos]

my thought of the expansion of the universe has always been imagine our 3d space was a 2d plane printed onto a balloon, and then the expansion of the universe is basically like blowing up the balloon and stretching out the space of the 2d plane