As you mention, computers can become "orders of magnitude more capable" simply by shrinking to a smaller form factor. We're about to have smartphones that are fully usable as computers, or smart watches that you can run free OS's and homebrew applications on.
> Then in the late 90s there was the Internet, with the promise that you could connect to anyone around the world and the potential to really bring the world together.
There's still plenty of projects trying to do that kind of thing. Big Tech social media is only the most popular part of the Internet, you're mostly free to ignore it if you like.
> Ok, those couldn't land again, but technological progress has been more of a crawl there (with an unnecessary detour into a dead end called "Space Shuttle").
The Space Shuttle was not a dead end, it had all sorts of cool capabilities that we're only now getting back with the SpaceX Starship. And rockets that land again are a big deal because they radically change the equation of how much it costs to launch things into space.