Earlier quoted context omitted.
>in 50 years America won't be a world power any more. It'll be in a similar place to Canada at best. What's going to replace it? Rapidly aging China? https://www.economist.com/cdn-cgi/image/width=600,quality=80... https://www.economist.com/cdn-cgi/image/width=600,quality=80... https://www.economist.com/cdn-cgi/image/width=600,quality=10...
You don’t need a numerical advantage to dominate if you have a technological / organizational advantage. The British empire was outnumbered 10 to 1 and still managed to control a large portion of the world for a while. US government is working overtime to make sure legacy technologies stay around while the rest of the world is investing into the future.
"Rest of the world"? Europe isn't even a player in the AI race. China might be better placed, but they also lag the US in terms of model development and capital deployed. They've been catching up, but that's not the same as "[American will] be in a similar place to Canada at best". That would require a lot of things to go right for China and/or a lot of things to go wrong for the US.