>>48894269>Why do Japs keep pushing and copying this "made in a laboratory" plot point?Because it is one of the most legitimately interesting pieces of lore in the entire series.
The idea is that humans found one of the first Pokemon to have ever existed, from which almost every thing else descended, and was also at that time the most powerful that was known about.
They captured that mon and attempted to alter its genetics to create from it an even more powerful mon. Ditto exists solely as a representation of their many failures, being weak and incapable of anything other than altering its genetics. They eventually succeed with Mewtwo, tailor-made to fuck shit up, which came out looking like a cooler version of Mew.
It's a really fascinating story that explains pertinent parts of the game and also adds to the mysteriousness of the experience.