Earlier quoted context omitted.
So don't build an AirBnB-like solution.
This means you will never build anything with zero marginal cost. That cuts out a lot of opportunities - and with software eating the world, more and more opportunities over time.
One is better off building something smaller, where work and talent is enough to maintain it.
There are more opportunities in those companies (e.g. a $1 to $50 million dollar business) of which there are tens of thousands, than to build the 1 in 100 behemoth.
You'll have more chances of success, and you'll live and sleep better. Because money, above a certain amount, also has a marginal utility curve and diminishing returns.