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A comment on Mathematician Wins $3M Prize for 'Magic Wand Theorem'. Parent comment

Re:Mathematician Wins $3M Prize for 'Magic Wand Theorem' by yummypaint on Friday September 06, 2019 @08:08PM (#20900936)
Numberphile to the rescue https://www.youtube.com/watch?v=xhj5er1k6GQ&app=desktop
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Re:Mathematician Wins $3M Prize for 'Magic Wand Theorem' by Fnoord on Saturday September 07, 2019 @06:42AM (#20902989)
Rooms are 3D. Why is the problem drawn out in 2D and not 3D? What difference would it make?
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Re:Mathematician Wins $3M Prize for 'Magic Wand Theorem' by Fnoord on Saturday September 07, 2019 @10:41AM (#20904023)
I would appreciate it if the downvoters would answer my question. Thank you.
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