This stuck in my craw at the time Patrick published it but I didn’t have the energy to respond. Now, with the ever-increasing, genie-fueled emphasis on speed, it deserves a second look. Among its several flaws as a statement is that it misses one point that XP got right, a point that’s become leveraged. I’ll start gently, addressing the OP directly. Responsibility I don’t like the tone. Who exactly hired The Slow (may as well be honest & capitalize)?