"Theoretical considerations of the feasibility of correcting chromatic aberration were debated in the 18th century following Newton's statement that such a corr

"Theoretical considerations of the feasibility of correcting chromatic aberration were debated in the 18th century following Newton's statement that such a correction was impossible" - from following the rabbit hole to https://en.wikipedia.org/wiki/Achromatic_lens https://en.wikipedia.org/wiki/Achromatic_lens Eventually scientists stopped using the word "impossible."