The second program calculates the approximate size of paper needed to fold it over a given number of times. Why did he send me these? Was it for a grade? Clearly, no. He already graduated.

I told him that I would give him a million dollars if he could fold a piece of paper in half, and in half again, and so on for a total of 10 times. Of course he tried, and of course he failed.

The elegant simplicity of folding paper has inspired researchers to explore the possibility of replicating this flexibility at the molecular level. After extensive experimentation, they uncovered ...