When we first started playing we did a lot of rehearsing. We used to write out everything. In fact, that's the way everybody rehearses: we play the tunes and improvise.
We speculate as to what is in store for us. But we not only undergo events, we in part cause them or at least influence their course. We have not only to study them but to act.
A blond in a red dress can do without introductions - but not without a bodyguard.