Actually, no, this isn’t what they mean. The concentration level for unit test runs is distracted much more if your thought process is preempted by another work

Actually, no, this isn’t what they mean. The concentration level for unit test runs is distracted much more if your thought process is preempted by another work task, no matter how trivial. There’s zero fall out from surfing the WWW for a few mins. A case where it’s more productive to be skiving.