No, it’s really not that rare. There are new scientific discoveries all time, and all from people who don’t have the advantage of having the entire corpus of human knowledge in their heads.
To be clear the “this” is a knowledge based “aha” that comes from integrating information from various fields of study or research and applying that to make a new invention / discovery.
This isn’t that common even among billions of humans. Most discoveries tend to be random or accidental even in the lab. Or are the result of massive search processes, like drug development.
Regardless of goalposts, I'd imagine that a persistent lack of "intuitive-discovery-ability" would put a huge dent in the "nigh-unlimited AI takeoff" narrative that so many people are pushing. In such a scenario, AI might be able to optimize the search processes quite a bit, but the search would still be bottlenecked by available resources, and ultimately suffer from diminishing returns, instead of the oft-predicted accelerating returns.
