It might also be a useful tool for attaining self-knowledge outside of goal-directed behavior. Consider this passage from The Aleph:

Turning the corner of Bernardo de Irigoyen, I reviewed as impartially as possible the alternatives before me. They were: a) to speak to Álvaro, telling him the first cousin of Beatriz' (the explanatory euphemism would allow me to mention her name) had concocted a poem that seemed to draw out into infinity the possibilities of cacophony and chaos: b) not to say a word to Álvaro. I clearly foresaw that my indolence would opt for b.