I think we are closer than most folks would like to admit.
in my wild guess opinion:
- 2027: 10%
- 2030s: 50%
- 2040: >90%
- 3000: 100%
Assuming we don't see an existential event before then, i think it's inevitable, and soon.
I think we are gonna be arguing about the definition of "general intelligence" long after these system are already running laps around humans at a wide variety of tasks.