Learning is the mostly blind accumulation of knowledge that will hopefully be beneficial (and not detrimental to the excess of that benefit, which is not a give

Learning is the mostly blind accumulation of knowledge that will hopefully be beneficial (and not detrimental to the excess of that benefit, which is not a given) in the future. Targeted study is the exception, even for humans. This is also a somewhat better description of evolution than yours because benefit in excess of detriment is not a guarantee and the process is not blind (because animals breed selectively).