>Yet it isn't happening, suggesting the current system is already in its optimal state.
I don't follow. A gap not filled is not evidence of no gap.
I can think of several companies/industries/products where people said "It's as optimal as it gets!" and then Netflix/Dropbox/Uber/Pick-X-Tech-Company gets invented and makes things more optimal or changes the game completely. They also make all the people who say "our current system is in it's optimal state" look silly.
The Netflix/Dropbox/Uber/Pick-X-Tech-Company tried and failed too - Amazon and others did a big push for drone delivery at larger scales a few years ago with a huge bankroll and tech light-years away from a government-sponsored project and even they couldn't make it work.
I don't follow. A gap not filled is not evidence of no gap.
I can think of several companies/industries/products where people said "It's as optimal as it gets!" and then Netflix/Dropbox/Uber/Pick-X-Tech-Company gets invented and makes things more optimal or changes the game completely. They also make all the people who say "our current system is in it's optimal state" look silly.