By his own admission, John Riccitiello has a long history of making predictions—some of them right, others not.

Riccitiello, a long-time videogame industry executive who is now CEO of Unity Software, once blew it with a prediction that a new Sony PlayStation game console would come out a year earlier than it did. He did better in 2015 when, at the zenith of the hype surrounding virtual reality, he began publicly casting doubt on overoptimistic projections of how fast the VR market would expand. His latest prediction is that “real-time 3D content”—a category that includes games and material with game-like interactivity—will account for almost half of all visual digital content by the end of the decade, compared with what he estimates at only about 3% today.