This is not human:
http://www.speedstacks.com/videos_more.htm
click on "Emily Fox does Cycle in 7.43 seconds"
In case you aren't interested enough to click....
Imagine you have three stacks of plastic cups. Two stacks each have 3 cups, one inside another, face down on the table. One has 6 cups, same fasion.
Your mission?
-Assemble pyramids of 3 with the 3-cup stacks and a 6-cup pyramid with the 6-cup stack.
-Disassemble
-Assemble two 6 cup pyramids
-Disassemble
-Assemble one 10 cup pyramid
-Disassemble
I could probably knock it out in 30 seconds, maybe 20 with practice. But this? It's just not normal.