[makomk]

In reality, I think a lot of art these days isn't created by the artist, at least not mostly - it's created by their technicians or students or other people they employ and then just given their blessing, maybe with a few last finishing touches. The thing that makes it not a forgery is literally the artist's blessing; in principle you could even have a "forgery" that was created by the same person as the genuine article. This isn't widely advertised for obvious reasons but it isn't exactly a secret either, and it's not really a new thing - the actual creation of some of the classic, famous fine art paintings was a lot like this too and it makes verifying authenticity very interesting.