To give a concrete example, let's say I want to show that I can influence a coin flip with my mind in order to produce a heads result every time. I do this by publishing trials where each instance involves me flipping a coin four times.
I conduct 16,000 trials. On average, 1,000 of them will show that I can flip a coin and get heads every time. If all I publish are these trials, that yields the amazing result that I can, in fact, influence the coin! Furthermore, the p-value is phenomenally small. And it's very easy to design this experiment to meet all the criteria mentioned in the post other than preregistration.
I conduct 16,000 trials. On average, 1,000 of them will show that I can flip a coin and get heads every time. If all I publish are these trials, that yields the amazing result that I can, in fact, influence the coin! Furthermore, the p-value is phenomenally small. And it's very easy to design this experiment to meet all the criteria mentioned in the post other than preregistration.