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ralusek 

    thickness * 2^folds
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blueboo
nonsense i've done origami with well over a hundred folds and it wasn't quite as big as the universe,
Terr_
I think you're missing the key point about "in half", which implies that every fold results in a doubling of thickness, and that every successive fold bends all existing layers.
apotatopot
And if you fold a paper in half 104 times it'll get as thick as your skull. muahaha
herogreen
As thick as the visible Universe I guess. If I understood PBS Eons videos correctly the size of the universe is unknown.
Aenoire
Mr. Wizard showed me this decades ago.

Is he even still around?

HocusLocus
Every fly you miss with the flyswatter breeds a galaxy-mass of flies in one year.

If you scratch an elephant with a single fingernail, then two, then gather more people as necessary... by the time you all comprise a city no trace of the elephant will be found.

The next prime is closer than you think.

ramblerman
> Every fly you miss with the flyswatter breeds a galaxy-mass of flies in one year.

That doesn't seem right. a galaxy mass of flies on planet earth seems like it might be problematic.

sunstone
But at the same time the area of the paper will get almost infinitesimally small so you'll end up with an undetectable paper filament that stretches across the universe.