All you need is a pool table, beer, an electric jukebox and good conversation. The day a girl beats me in a game of Beirut [a kind of beer pong] is a good sign!
Organisms are not billiard balls, propelled by simple and measurable external forces to predictable new positions on life's pool table. Sufficiently complex systems have greater richness. Organisms have a history that constrains their future in myriad, subtle ways.
Breaks like a ball falling off a pool table.