We’ve forgotten what “good technology” means.
1) Actually freakin' show up.
2) Not take the lifetime of the universe showing up
3) Accept credit cards
4) Clean their car occasionally
I can go on ...
If Uber/Lyft completely flame out, I would not like to see these things go back to the way they used to be.
The technology is everything that enables these apps (GPS, mobile chipsets, cellular technology, mobile OS, etc.).
My prediction is that Uber and Lyft will either themselves morph into something more like traditional cab companies, or their technology will be bought out of bankruptcy to build something similar. The world will run out of suckers who want to lose money subsidizing their rides and suckers who are willing to wear out their vehicles to drive for them.