At least, that's the main thing I got from this:
http://www.paulgraham.com/die.html
If one takes serious measures to belong to that second group of startups which are not (necesarily) doomed to failure, then the really relevant question is: what is the success rate in this group? 25%? A third? A coin flip?
Of course there's also a non-trivial chance of belonging to the first group, but not acknowledging or being aware of it.
So with all of that in mind, it would be really interesting to see an update to the conclusions from http://www.paulgraham.com/notnot.html
Admittedly, this sort of strategy doesn't work for all kinds of startups, in which case you might start a related small business, and use it as a base to launch startups.