Perplexity made AI coding tools mandatory, and its founder said engineers are now prototyping in hours instead of days.

Round 2 of the U.S. Open was suspended Friday due to inclement weather. Action will resume Saturday morning before the start of the third round.

A neuroscientist urges us to delay morning screen time by 20 minutes to harness the brain’s peak focus, creativity, and motivation right after waking up.