dead time, n. wasted time. time not spent in becoming or being. time not spent thinking about something cool or doing something interesting.

According to the Situationalists (a school of thought founded by Guy DeBord), life is meant to be lived without dead time. Vivez sans temps mort! In spite of the fact that we, in fact, only have one life, a great deal of it seems to be wasted. Unecessarily.

Do things that cannot possibly be repeated. Avoid safety. The only way to be safe is to be dead (to paraphrase G. K. Chesterton). Look for secrets.