Clifford Pickover's "ESP Experiment" is a wonderful implementation of the "pick a card, any card" online mind-reading trick.
How do YOU think it works? (OK, everyone knows how it works. But it's STILL fun.) Link Discuss
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.