I'm completely on board with Sean's "achieving product/market fit requires at least 40% of users saying they would be “very disappointed” without your product".
However, 40% of how many users?
I understand that there may not be an exact formula given that every product/service is different.
I'm just trying to get a sense of whether we are talking about 40% of users in the 10s, 100s or 1000s here.
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