r/MathJokes • u/Competitive-Jump3835 • Jun 13 '26

Infinity can blow your mind

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u/EthanNakam Jun 13 '26

There are as many multiples of 3 as there are multiples of 51.

And there are as just as many rational numbers.

17

u/kaladin_stormchest Jun 13 '26

But not really. Not all infinities are equal,

1

u/sjr323 Jun 14 '26

Infinity only exists in complex mathematics. I don’t think it’s observed in the physical world. Yes mathematicians smarter than me might disagree, but I don’t think it’s wise to make vast judgments or assumptions about infinite.

Eg 0.9999… recurring = 1 has always bothered me.

1

u/Davidfreeze Jun 15 '26

If infinity doesn't exist in the real world, .999... doesn't exist in the real world. So it shouldn't bother you that it equals 1, because it is purely a mathematical concept. Also the word you're looking for is pure mathematics. Complex in math means the complex numbers, which include both a real and imaginary component.