JasonC said:
Those who own up to their mistakes and have learned from them, or those that think they never make any?
Somewhat disingenuous, suggesting there's only two categories. What about:
Those who make mistakes over and over, even though they learn from the previous ones?
Those who make mistakes over and over, and never learn from them?
Those who infrequently make mistakes but which have no epicness to them?
Those who infrequently make mistakes but which are epic-factories?
Those who own up to their mistakes but don't learn from them?
Those who don't own up to their mistakes, but learn from them?
Those who don't own up to their mistakes, but do learn from them?
Those who think they never make any, but actually do?
Those who think they never make any, and actually don't?
er,.... there's probably a load more, too....
My best guess is that Joel was observing that there are people in the world who have one foot on a banana skin and the other over an abyss, occasionally not clipped in with their cowstails, with a flickering dull lamp and a history of disaster on their infamous CV and that such people might be best left to their own devices rather than inviting them on anything too committing.