interesting subject, well i agree that "photos, music/songs, films/series/tv-shows/adds, draws/paints, cartoon/video-games, books/stories/novels/magazines" will always exist but it will be only a small portion because the rate at which humans regenerate/reproduce is limited, while on the other hand ai agents can do that nearly without limits, once human population reach 9b the ai agents population will reach 90b, once humans reach 10b ai agents reach 110b & so on , so i believe that most of "photos, music/songs, films/series/tv-shows/adds, draws/paints, cartoon/video-games, books/stories/novels/magazines" will be ai made- i would say it would happen n 15ys f not less, but again human made will always exist- like the cars example u mentioned- even that most cars are made by robots- luxury cars that cost the most are handmade to a large extent & the same when it comes to mechanical watches where the Swiss lead the way. cool post- have a great day