
Our memories naturally degrade, but each time you return to a memory, you reactivate its neural network and help to lock it in. The effect on retention of learning in this manner is staggering…

Over in Germany, water sliding is serious sport. Hiking up their Speedos, athletes of all shapes have learned how to top 50 miles per hour with only the occasional bloody nose and forehead stitches. This I had to try.

Erik can’t move. He can’t blink his eyes. And he hasn’t said a word since 1999. But now, thanks to an electrode that was surgically implanted in his brain and linked to a computer, his nine-year silence is about to end.