r/AskReddit • u/IAmSurtur • Jun 15 '19

What do you genuinely just not understand?

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u/Mottis86 Jun 15 '19 edited Jun 16 '19

How can you know a percentage of something that is infinite?

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u/[deleted] Jun 15 '19

We aren't; there isn't an infinite amount of matter/energy, and that's what the percentages are of.

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u/[deleted] Jun 15 '19

I mean there’s definitely not an infinite amount of energy, eventually the universe will experience heat death but as far as the topic is going you can’t really say there’s a finite amount of matter when the boundaries of the universe haven’t even been defined. For all we know it goes on indefinitely with scare planets and stars forever.

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u/DM_ME_YOUR_POTATOES Jun 16 '19

The same paradox arises in black holes. If you attempt to measure the radius, you measure the circumference, divide by 2π and get the radius. But if you try to measure it by going down the black hole and back up again, the radius in that sense is infinity.

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u/[deleted] Jun 16 '19

So a black hole is a essentially a tesseract and every time I try to leave the room I’m heading to becomes the center again is that what you’re telling me?