Epic's founder, Tim Sweeney, believes that we’ll achieve "an indistinguishable from reality level of graphics" within the next 10 years.
Speaking at the Develop conference, Sweeney, noted that computing power available for graphics has increased a million times since he first started programming.
But that doesn’t mean that games will be indistinguishable from reality. "That just moves the challenge of graphics to the problems we don't know how to solve," explained Sweeney. “Like simulating human intelligence, animation, speech, lip-syncing. There are still a lot areas that will require ongoing research for probably the rest of our lives before we come close to approaching reality.”