Found this very interesting, but my head hurts.

That was very interesting to watch as a math major

I remember seeing some of those tricks

I found it very interesting. Watched it today. I think a lot of people would be pleasantly surprised if they watched it. Infinity X 2 = What? Anybody know?

It's fantastic!

I've watched it three nights in a row and have fallen asleep after about 10 minutes each night. With 50 minutes to go, I should be good for 5 more nights.

I can't wait to sub for 6th grade math so I can explain that a 1" diameter circle is the same size as a 2" diameter circle because both circles are made up of exactly the same number of points that are exactly the same size.

Watched this couple nights ago and I’m still thinking about this one. Very interesting to say the least!

Very thought provoking! And made me see things in ways I'd never have thought of.