If researchers needed to test more than 7 approaches to "hit the nail", they would never get to write papers.
with ↵ = 0.05, and set to 0.5, we find that the probability of a research finding being truegiven there is no selection bias and with perfectly valid metrics -is just 50%: if researchers do a perfect experiment and report p < 0.05, the chance of that finding being true is the chance of seeing tail when flipping a coin.