"Assumptions are the mother of all f_ups." That is what I've always learned, and experienced. My entire dayjob consists of finding the assumptions people made,

"Assumptions are the mother of all f_ups." That is what I've always learned, and experienced. My entire dayjob consists of finding the assumptions people made, and exploiting them. Yet, here we are. In Agile Land. And _everyone_ treats assumptions as some proven datapoint. We now call them 'estimates'. But if it looks like a duck....