english: But Einstein realized that Newton had left something out of the story, because even Newton had written that although he understood how to calculate the effect of gravity, he'd been unable to figure out how it really works.
non_english: Ampak Einstein je ugotovil, da je Newton pustil nekaj ob strani, saj je Newton celo zapisal, da ni, čeprav je razumel, kako naj bi izračunal učinek gravitacije, nikakor mogel ugotoviti, kako zares deluje.