This article is concerned with critic of “deferred innovations” hypothesis whereby the most of inventions that were done in later stages of human society’s progress had been known long before its mass adoption». Source studies show that the long-continued hidden preservation of cultural phenomenon in Stone Age environment when it doesn’t appear in real culture or archaeological materials is impossible. It follows from that prehistoric community was the singular holder of information and every innovation could be relayed in time and space only as real cultural remains that archaeologists record in our times. All the cases of appearances of similar phenomena and artifacts without chains of traditional relations transferred by ancestral and communication way is the products of repeated discoveries of failed inventions.