Although 19th-century ethnologists saw "diffusion" and "independent invention" as mutually exclusive and competing theories, most ethnographers quickly reached a consensus that both processes occur, and that both can plausibly account for cross-cultural similarities.
Yadiastun ahli etnologi abad kaping sia ngolas manggihang "difusi" miwah sane "manggihang independen" pinaka teori sane kautamayang utawi eksklusif taler mesaing, akehan ahli etnografi gelis prasida nyujur konsensus indik  kakalih pidabdab punika prasida mamargi, taler makekalih prasida nlantarang  indik napi sane pateh ring lintas budaya.