[2arrs2ells]

Your argument is a “unique insight” isn’t enough to provide an enduring competitive advantage (or “moat”). But that’s not what the OP is talking about.

A unique insight (and great timing / market) is often enough to get to early PMF (and - like you mention - to Series A).

[enos_feedler]

unique insights come from your perspective. It is your unique perspective which is a _factory_ for unique insights that allow you to solve a series of problems that hit your startup/company in succession. It is this durable perspective that has built up through long term experience that can't easily be copied/duplicated that makes you win a market.