Neil deGrasse Tyson: Is The Universe Infinite? | With Richard Dawkins

[jesussalinas]

i understand what dawkins is trying to convey to neil degrasse about how if your outside the view of 14 billion light years if the the universe is infinite... all that degrasse needed to say was I DONT KNOW instead of going on in rants....

[nikolakolchakov]

If universe is a room, what's outside of that room ?

[huntersennett]

Bro I’m sitting here at 11 o’clock at night and my mind is just simply blown to think that the universe is never ending has no end it is just in perceivable is mind bending for someone whose not even finished with high school physics class. Needless to say I think I might want to be an Astro physicist

[JAYFULFILMZ]

Don’t know what Neil is ever talking about, but I always listen like I do!

[BCrudeless]

I like to think of an infinite universe as simply the space that matter could inhabit being infinite, there may be a limit to the amount of matter or energy that exists but the black void outside of it may be infinite, and probably is because I don't think it's logical to assume that there would even be a boundary

[workingTchr]

One possible reason why this is so difficult for Dawkins to understand -- and he never does, they just agree to stop talking about it -- is that the explanation has a fundamental error in it that Dawkins' rigorous logic can't accept but that Tyson -- for some reason -- doesn't have a problem with. I couldn't understand his explanation either, and he (Tyson) didn't seem all that keen on explaining it.

[mjc]

I don't think we should say with certainty that the universe had a beginning. Human logic would lead to that conclusion, but the universe is stranger than human logic.

[BelaCurcio]

Tldr: he says that we don't actually know if the universe is infinite... and says a lot of other stuff - completely irrelevant to the question - about how much of the universe we can observe.

[ricromo]

You're very kind Dicovery Panda. I wish I as your friend

[peterswanson]

I think the question that is not being asked, at least I think the host is intending to get to it but doesn’t know how to verbally, is that .... if the universe or at least the material that we see expanding more moving away from us, but only at 14billion light years away from where we are.... what space or area is the universe expanding into. Does that space that was not occupied prior to matter arriving there in existence? In other words, we only see 14 billion light years out... but could the actual dark space go on infinitely. And if not, what happens if you get to the edge of the universe? Does it place you back at an original point... like a sphere?

[lilgrannyari]

"It is still there even if we can't detect it". I find it interesting that deGrasse Tyson has no problem accepting this as I know he is a confirmed athiest. However, I think that if we accept the reality of an ever-expanding universe that exists despite being beyond our sensory understanding/what we can observe, then why is there no room for God in our understanding of the universe? I'm with Sagan on that point: "[t]o be certain of the existence of God and to be certain of the nonexistence of God seem to me to be the confident extremes in a subject so riddled with doubt and uncertainty as to inspire very little confidence indeed."

[kingloufassa]

When space ends, non-space begins. Non-space is 2d.

[carlyletom]

He did not answer the question that was asked. He only gave the perspective of us here on earth looking outward and imagining that we are looking out at the horizon.

[Deoxys_da]

Simply universe is expanding faster than the speed of light so we never find out the edge maybe someday we need to find something which is faster than light for example tachyon

[seandeefromthechi]

But what is the universe in. Is there a wall? Even if u got to the end and fell off, where did I just fall? And if there is a wall whats outside the wall? Is it just a bubble inside an bubble inside a bubble inside a bubble?

[georgequalls]

How big was the universe 14b years ago?

[ridvankeltchev]

Let’s say it’s not infinite, then there would be nothing beyond it. But that’s what we started with as the universe -nothing. So it would continue therefore. It’s thus infinite.

[fraser_mr]

Neil Tyson's knowledge is amazing. He's smarter than Richard Dawkins.

[thekidmagician]

The point is we are not sure about the Universe-
According to me

[moshedayan]

Well i am out of depth here.. Lets have two beers each