Good point. A valid counterexample would be the well though out text book examples of minix (and gnu hurd) vs Linux. Sometimes paralysis by analysis is a bigge

Good point. A valid counterexample would be the well though out text book examples of minix (and gnu hurd) vs Linux. Sometimes paralysis by analysis is a bigger problem than bugs and bad architecture. And often the alternative to "usable" isn't "perfect" but "never shipped".