many people knew this was a terrible idea!
I'm concerned about hindsight. Lewis only says that the old guard objected, but he doesn't make it entirely clear why; "moral disapproval" doesn't suggest consequentialism.
Lewis certainly does suffer from hindsight. The article claims that he was "waiting for the end of Wall Street," while his book says "I didn't think Wall Street would collapse."
Followup to: Unteachable Excellence
As previously observed, extraordinary successes tend to be considered extraordinary precisely because it is hard to teach (relative to the then-current level of understanding and systematization). On the other hand, famous failures are much more likely to contain lessons on what to avoid next time.
Books about epic screwups have constituted some of my more enlightening reading. Do you have any such books to recommend?
Please break up multiple recommendations into multiple comments, one book per comment, so they can be voted on and discussed separately. And please say at least a little about the book's subject and what sort of lesson you learned from it.