> Because if you use the colloquial definition of the term, there are a number of currently maintained and used GC that aren't the 2nd kind.
For the majority of applications, those GCs are inferior to generational GCs that balance throughput and latency.
If you had a bus like this, combined with autonomous self-driving, it might revolutionize travel in the US!
Of course you usually don't need that much speed and you'll end up having a lot of pauses on your SF to NYC trip, but you'll get there a lot quicker because you'll be able to drive at 70 mph all the time.
And when you arrive, all of the driving and stopping will leave you fatigued. The steady-state travel enabled by the robot nuclear super-bus would let people travel in sleeper compartments!
Which model is better ?
Clearly the 2nd!
I don't know but all the car I know are the second kind. What about GCs ? I don't know, but the majority of modern GC are the second kind …
You seem to be leaning rather heavily on the adjective "modern." Because if you use the colloquial definition of the term, there are a number of currently maintained and used GC that aren't the 2nd kind.