As long as you're persistant and keep iterating, and as long you are perfectly capable of succeeding, then luck will become statistically insignificant with respect to your persistence and as time increases. In other words the longer you keep at it, the less of a factor luck will be.
Luck determines how fast you succeed, or fail, and at which iteration it happens.
If you want to talk about the general trend you can make such a probabilistic claim, like "20% of startups succeed," but it becomes insignificant at the individual level because time spent is variable. You can't give an estimation until you know how much time he/she will keep at it.
I guess Jefferson's way of saying it is the same concept.
The fact that at least two independent sources have come to this conclusion is an indication that it may not be a fabrication of my erratic mind. Thanks for bringing it up.
