Nuclear Engineer Reacts to Kurzgesagt 'The Paradox of an Infinite Universe'

[thetowndrunk]

Idk if the universe is infinite, or if the multiverse exists (I believe it does), but I do know we need to get cleaner energy, so here’s to the Folse reactor I hope you design one day. Keep up the fight.

[robertsmith]

The way I look at it, just because light hasn't reached it yet, does not mean that the "Space" isn't there, even though I guess that makes it sort of irrelevant if it's just completely empty, the math would end up being zero..

[fabriziobiancucci]

5:40 According to the theory of cosmic inflation, the universe should be 150 sextillion times larger than the observable universe, so the hypersphere is actually likely

[IAteYourCookiez]

Watched this video yesterday. I absolutely love it!

[FSAPOJake]

I've got one you might want to check out... MrGreen's "I Tested the Limits of a Microwave" which is basically a styropyro-style video but Australian. Has all sorts of stuff about non-ionizing radiation and interesting cob-job engineering.

[shtefanru]

Man, thank you, your material is great and i really enjoy your subtle humor of a nuclear engineering

[tomtackett]

Tyler, I’m a high schooler who is very interested in becoming a nuclear engineer some day, and I would love if you made a video sometime about how you became one and how someone might prepare for that path in high school and college

[davidfernandez]

I am amazed by many things of this video, but mainly, I thought humans have found quadrillions of galaxies each of which include trillions of stars.

[blakeybarzabal]

Doughnut universe suggests the existence of a coffee universe

[jannepelto]

Donut, String theory or cyclic universe somehow seems like the best idéas we have, at least for me. =)

[supdude]

I'd love to see you react to a video with actual hard science and mathematics (try PBS Spacetime, hosted by an actual professor). I love Kurzgesagt for their ability to explain complicated topics to the masses.. but I want to see you reacting to actual hard numbers and data (you seemed so surprised that Kurzgesagt 'actually' performed a calculation..). Something tells me it won't be so easy for you to edit down lol. You can pick on Kurzgesagt all you want for their (self-admitted) "lying" and simplification (they always have their sources in the description..), but I want to see you reacting to something closer to an academic level.

[rampage]

also if you think about how time works for light it kind of makes sense that the universe is infinite and that there is no edge because it's infinite. light has no time meaning the expansion of the universe has already happened and it's just infinite. no mather how hard you try to get to the edge you can't because geting to the edge means going light speed and light speed means it's instantly all just infinitly there. i don't think our human brains can understand it. no mather how you think of it like what if we teleported to the current edge just instantly during those sec where the universe is expanding what is on the other side of the edge? there is no edge there is just infinitly more space. so the universe is infinite because there is no actual point in time where there don't exist more universe beyond the edge.

[MatthewSuffidy]

I 'think' what they are saying is that there are some theories, but the only fact we know is the Universe is at least the size we have observed. Kind of profound artwork though. I downloaded a copy.

[zhadoomzx]

In an infinite universe (either in time or space or both) not everything that is possible (by imagination - like someone getting straight flush 10 times in one poker game) has to happen infinitely often. Some reasonably imaginable things might never happen. Even something that has already happened, might still happen only once, cause they might have happened once *despite* having zero probability.
If you pick a random number from an infinite set (for example the natural or real numbers or even just a rational number between 0 and 1), each number has zero probability to be picked... yet the moment you pick one, it has happened.
Even if you pick a number from 1 to 10 but repeat that infinitely many times... the numbers picked might be 1, 1, 1, 1, ... not very likely, but just as likely as any other infinite sequence... zero probability.

[Stageweez]

What are your thoughts on hinkly point c ? Sorry if youve covered this already

[andrewnotrealname]

Time is relative to space, so if space curved in on itself, then time would be freaking out. All of these “finite with no border” stuff would completely wreck the flow of time.

I’m no expert, but I know you can’t bend space without time bending in the inverse.

[JKTCGMV]

I don't get why they talk about the edge of the observable universe as if it's a physical boundary. That's like calling the horizon the edge of the earth. We literally just can't see beyond it, not that there's a wall. Galaxies are drifting out of the observable universe constantly because they move away from us faster than the speed of light.

[muuubiee]

Just because something can happen doesn't mean it happens. I think it's more aching to, in an infinite universe, it's extremely unlikely that everything that can happen happens. Since you'd more so then be looking at a completely random universe, with no structure.

[isaaccunningham]

I was thinking about what you said in regards to an infinite universe meaning that uniqueness no longer exists and a few other of your suggested philosophical outcomes from about 8:30 int he video: Is that even true though? Could you not have an infinite universe where certain things are not repeated? I get the sense that this question is related to a really difficult application of cardinalities, and of course I have no idea, but it seems to me that you could have an infinite universe where there might even be no objects that are exactly the same. I don't know, hard questions obviously.

[ScarlettStunningSpace]

Flat universe is infinitely more interesting than flat Earth because we definitely know the Earth isn't flat.