Also math can hinge on small technicalities. Like Andrew Wiles got a pre review for the proof of fermat conjecture and all was well. I depth review later found a serious gap/flaw which fortunately with hard work and luck he could plug. In contrast if you invent the electron microskop and you get images, you still made the invention (even if small or even big details might be wrong, and the result could be better). In other science often the gist is not effected.