Comment by aristofun

I wonder for every Dropbox how many similar products are there in the graveyard.

Technically I understand the market fit as the point where your unit economy starts making ends meet and showing positive dynamic. If for every dollar spent (on everything including and most importantly user acquisition) you can prove yourself that you get >1$ returns, your business model works.

And I doubt there is a simple strategy for that, or even a finite number of strategies, even complex ones that can guarantee you anything.

And I'm sure nobody truly knows "in advance that it'll succeed" whatever "it" is.