I’d have to agree that it’s random to find. The entire time I was exploring PMF it felt like coin flips. I couldn’t help but wonder if the feedback I was getting is just a string of tails or something actually converging to .5. I think getting expert advice makes it a little less biased in the outcome. Still, it feels very much random. I feel sorry for the people who spend years trying the PMF lottery. It’s hard to know when to quit an idea for so many reasons, financially, emotionally, etc.