Originally Posted by PartSkeptic
It's the only way I know to carefully and methodically eliminate the effect of our cognitive biases. That's what it's chiefly for. If you know any other way of doing so, by all means describe it.
Subjective validation is not a God given talent, it's one of several sources of possible error that have been hard wired into the way our brains work by natural selection. Those sources of error have to be eliminated before anyone, including you, can reliably conclude that a pattern or correlation you think you see is really there. Again, if you know a way of doing that other than by the careful application of the scientific method, let's hear it.