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by muzani 2214 days ago
https://a16z.com/2017/02/18/12-things-about-product-market-f...

"So what are considered some of the best tests for PMF? Rachleff writes that “You know you have fit if your product grows exponentially with no marketing. That is only possible if you have huge word of mouth. Word of mouth is only possible if you have delighted your customer.”"

Generally, if growth is slow, your product is not good enough, or rather there's no market for it. You should try different things until you get to a point where you have more customers than you can deal with. Slack originally worked on a MMO, then shut it down and worked on the messaging tool they used while building it.