Only now are computer-generated animations reaching a level of technical sophistication where a fabricated character might be mistaken for a real human--as can be seen in Final Fantasy: The Spirits Within (2001; Fig.11.5)--but hand-drawn animation will probably never achieve this level of naturalism.

For more details, see Jon "Hannibal" Stokes and Jonathan Ragan-Kelley, "Final Fantasy: The Technology Within," arstechnica, arstechnica.com/wankerdesk/01q3/ff-interview/ff-interview-1.html.