A mathematician explains infinity

Infinity is an elusive concept that can often be difficult to comprehend. In order to better define what infinity actually is, we brought in Eugenia Cheng, a mathematician and the author of "Beyond Infinity."

[marcusm]

Infinite is what happens when 8 gets drunk

[Inyourlap]

I wish she had talked about those paradoxes instead of her handbags. This would have been infinitely more informative.

[persimmon]

There is an infinite amount of numbers between the number 0 and 1.

[demonetization]

How my maths teacher explained infinity:
Imagine standing Infront of a mirror, you hold up another mirror and look at the image of the mirror you held up. Within the image you see another of the same thing. This technically goes on forever.

[milotherussianblue]

I see this a lot in academia. Very smart people who can explain concepts to each other fairly simply but aren’t really that good at explaining things to regular people. This is just another example.

[vKRON]

"A mathematician explains infinity." I don't need anyone to explain it - infinity is infinity.

[JoeIdolChannel]

Well, better ask Thanos who have 'infinity' stones.

[benkerry]

You're inevitably going to run out of bags and you started with 1. Not a very good explanation in my opinion.

[jamesrevelscomposer]

For those confused about the bags. Think of it like boxes instead. Zero is equivalent to an empty box. One is a box with 1 thing in it. Two is a box with 2 things in it etc. Infinity is a special box that contains all other boxes.

[Lionkickz]

Einstein: Infinity is just a number that goes on
Lady: I like bags
*makes a video about bags

[daniyalkaleem]

What she is trying to say is that if you were to take your conventional number line and try to move forward, you won't find infinity somewhere along it rather it's the complete set of numbers on number line that infinity is.
It is not a number it's just the whole set of numbers.

[razerage]

depends on the size of the bag. you can't fit certain amount of bags inside a big bag lol

[vnquish]

Infiniti can be seen when you hold a mirror in front of another mirror. The reflecting images will create a pathway that has no ending. The pathway over a distance will start to curve and eventually run into itself an infinite amount of times. Kind of like the symbol for Infiniti. I learned this at the barbershop when I was 12 trying to watch tv in the mirrors.

[spitalhelles]

Indirect proof that the set IP(S) of subsets of a set S has a higher cardinality than S:

Let's assume both sets had the same cardinality, then there exists a bijective (and thus surjective) map f: S -> IP(S) such that for every P in lP(S) there is an x in S so that f(x) = P.
Now let's take a look at a special element C of lP(S) and subset of S.
This set C contains x if and only if f(x) doesn't contain x. (and thus doesn't contain x when f(x) does.)
By this construction, there can be no x so that f(x) = C.
q.e.d.

[klloydplata]

This is what Infinity means because Thanos wants a Infinite descent life on the whole universe as well as the whole galaxy that's why he wants to collect 6 Infinity stones

[meektitan]

What is infinity to the power of infinity?

[theblackhole]

it is explained by ramanujan a lot time before

[jordanchai]

Infinity isn't a number, it's a statement. It is used when we can't explain or finding the result of some calculations that is hard to perform. That's probably the easiest way to explain what is infinity. It's used when we can't find the proper or exact answer to the math problem

[alexac]

What does she mean by paradoxes in infinity?

[himalayasharma]

Now I want to understand the meaning of explaination.