[S]o whomever brought it up, it looks like humans favor a similar evolution of symbols and then incrementally evolve into pictorial or phonetic. I suspect that like most things, the mark-making process like the language speaking process evolves out of efficiency – laziness. lol So just as humans speak language humans can speak, humans draw characters humans can draw. Just as language evolves from harsh clear sounds to lazy songs (chinese), writing evolves from infrequent symbols, to that which we can write quickly.
