Actors do it in the limelight. Actors do it on camera. Actors do it on cue. Acupuncturists do it with a small prick. Alexander Portnoy does it alone.
Algebraists do it in groups.
Algebraists do it with homomorphisms. Algol programmers block it out. Algorithmic analysts do it with a combinatorial explosion. Alvin Toffler will do it in the future. Ambulance drivers come quicker.