Psychology
Why people do the things they do.
Psychology
Why can't you tickle yourself?
Your brain predicts the sensations your own movements will produce and quietly turns them down, so a self-administered tickle arrives already expected and therefore not ticklish.
5 min readintermediate
Psychology
Why does time seem to speed up as you get older?
Because you judge elapsed time largely by how much you remember of it, and a familiar year lays down far fewer distinct memories than a novel one.
6 min readintermediate
Psychology
Why do elevators have mirrors?
Mirrors were added because complaints about slow elevators dropped sharply when people had something to look at, which was far cheaper than making the elevators faster.
4 min read