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emeraldd
on Sept 2, 2015
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The xkcd survey
Did you also pick e?
veddox
on Sept 2, 2015
[–]
No, I went with 4: a) it's even b) 2+2 c) 2*2 d) 2^2
roryokane
on Sept 2, 2015
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parent
[–]
e) 2↑↑2 f) 2↑↑↑2 g) 2↑↑↑2 …
(
https://en.wikipedia.org/wiki/Knuth%27s_up-arrow_notation
)
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