The main point is to be able to handle uncertainties in a normal basis, the greyness of reality, despite the temptation of blacks and whites of our minds.

For sure it costs a lot. The consideration of the superposition of possible truths and the weight of potential biases is a huge burden without granted full coverage, but allows you to accumulate a landscape of plausibility of things: yes, is not 100% precise and is still built by personal prejudices but, with a systematic acceptance of new bits of information regardless of how comfortable they are, it can grow a mostly reliable understanding of reality with a variable amount of temporary uncertainty on some facts… and you can still convert greys into quasi-b&w once they reach a decent amount of independent evidences, you now, to free a bit your RAM.