Why natural selection is short sighted?

Natural selection is often described as "short-sighted" because it operates on immediate survival and reproductive advantages rather than long-term consequences. Traits that confer short-term benefits may lead to detrimental effects over generations or in changing environments. Additionally, natural selection doesn't anticipate future challenges; it only acts on existing variations that enhance fitness in the current context. Thus, while it can optimize certain traits for survival, it may overlook broader ecological or evolutionary implications.