Stop and watch.

These two TED Talks, published on the TED Talk podcast feed last week, are extraordinary.

The first, by author David Epstein, is on the science of athleticism. Are athletes of today really stronger and faster than the athletes of the past? The answer will surprise you.

The second talk deals with autism in no uncertain terms. Doctor and researcher Wendy Chung explains in clear terms what we know and don’t know about this disorder.

Watch both.