Agree completely that streaming single-player games is not an issue. The issue is that many of the most popular games in the world are FPS or real time twitchy

Agree completely that streaming single-player games is not an issue. The issue is that many of the most popular games in the world are FPS or real time twitchy games where latency is a huge issue. The #1 and #2 games in the world by peak player times are PubG and Crossfire. League of Legends, Fortnite, Rocket League, Overwatch, are all hugely popular games with hundreds of millions if not billions of players. There may be a niche for streaming games to those who enjoy single-player games, but that wasn't what Stadia was trying to be. They were trying to become the goto gaming platform for all games. Unless and until they figure out some sort of FTL communication, that is never going to be feasible as a universal platform.