A few counter-arguments, however:
- failing often, as an entrepreneur leads to discouragement — not generally good outcomes. As Thiel says, the best lesson was a very long and hard struggle, followed by success. This teaches you the right values: that making it is possible, but really, really hard.
- failing in the sense of failing to get a job, failing to make a sale should not confused with failing at a company. In one case, days or weeks are at stake, in the other years.