Unless you have VCs betting on the same horse... Accrual of advantage, etc etc.

You also likely have funds to float you for longer.

You also likely have a network to leverage/exploit.

These external things all can stem from a lucky first go.

Hard to say. There are knock-on effects from being highly successful. If you win the lottery and subsequently become a highly successful investor, for example, there’s a clear element of chance. You may have the latent abilities of an investor and the skills to fully realize them, but without the opportunity afforded by a windfall you would never find out.

If someone lucky to be in area/time of great development or inherited a lot of money, or have a good connections...

Then following your advise in less lucky situation is likely to fail.

With sufficiently large population, someone will randomly win against unlikely odds. For example, if there is a 1% chance your startup will succeed, but one million people try it, statistically one of them will have 3 successful startups in a row even without being better than average.

Though, realistically, the chance should increase for the following attempts, because you can reuse some resources and contacts you gained with the first success. The first startup is like "I need to succeed within three years, or return to a regular job to pay my bills". But if it succeeds, the second startup is like "I can keep trying as long as I want to, no pressure".