Squiddy:We miscalculated the amount of sail we would need. The original designs didn't have the variably-reflective layer, and when we added it the sail gained mass which we forgot to account for.
Ennesby:Are you trying to tell me that you didn't check your mass before you left on an interstellar voyage?
Squiddy:Would that have caught the problem?
Ennesby:You know, for advanced intelligences, you're really, really stupid.
Squiddy:Hey, we're not the ones with meat-creatures crawling all over our ship.
