If you read their material you'll see that they are expecting the project to "meet the world" in 2022 and are looking to achieve widespread adoption by 2040. As

If you read their material you'll see that they are expecting the project to "meet the world" in 2022 and are looking to achieve widespread adoption by 2040. As others have mentioned this might seem like forever in tech-startup terms, but they aren't aiming to just make a "AR-projector setup", they have much more ambitious goals, so it seems reasonable to also work on longer timelines, including keeping the "baby" in the crib until it's ready to walk instead of crawl.