As soon as making major changes is fast and cheap, this becomes much less of a problem. If your first iteration has some glaring issue, even if it's a fundament

As soon as making major changes is fast and cheap, this becomes much less of a problem. If your first iteration has some glaring issue, even if it's a fundamental one, just fix the specification. You can't do that today because fixing the specification after the fact means waiting 6 months and paying 60+ man-months. Once fixing the specification means waiting 10 minutes and paying $10 for inference compute, the idea guys can afford to learn by doing.