Focus Time: Why 2 Hours of Uninterrupted Code Equals 6 Hours of Fragmented Work

Gloria Mark's research at UC Irvine found that it takes an average of 23 minutes and 15 seconds to refocus after a single interruption. Now consider a typical developer morning: 9:07 Slack pings, 9:15 standup reminder, 9:45 a "quick question" from a ...