The old XP that modern "agile" grew out of explicitly reminded adopters that this was, by definition, impossible, but that reality was cast aside when it was fo

The old XP that modern "agile" grew out of explicitly reminded adopters that this was, by definition, impossible, but that reality was cast aside when it was found to be too inconvenient. It may have been cast aside by somebody, but not by agile practitioners. The reason that many managers still oppose agile is precisely because it explicitly rejects the predictability that the traditional waterfall promised.