I think the computing power will exist, some day, but the art assets required to make something TRULY 'real' are a long way off.
I was out walking in the forest tonight, and just glancing down at the ground there was an almighty mass of items in such a tiny space. Twigs, branches, leaves, mud, foot prints, rocks, pebbles, etc. Some items had bits of water on and no two things were identical. Everything was scattered all over the place, as nature (and human feet) had intended.
To re-create this tiny small space on a modern PC would be pushing it, from an art perspective alone. Faking 'real life' is what developers do best, and I am quite sure that art in itself will progress many fold in the next 10 years+ - but to create a truly lifelike scene? That is a long way off imho.
"Bite my shiny metal ass" - Bender, Futurama
No pixels were harmed in the making of this post
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