If the whole process of learning from failure means discarding stuff that's not working, but in fact, our natural reaction is to keep going, to throw more money behind it, to throw more emotional energy behind it... that's a real problem.
Tim HarfordTen percent of American businesses disappear every year. ... It's far higher than the failure rate of, say, Americans. Ten percent of Americans don't disappear every year. Which leads us to conclude American businesses fail faster than Americans, and therefore American businesses are evolving faster than Americans.
Tim HarfordEconomists have allowed themselves to walk into a trap where we say we can forecast, but no serious economist thinks we can. You don't expect dentists to be able to forecast how many teeth you'll have when you're 80. You expect them to give good advice and fix problems.
Tim Harford