When in a thread about whatever someone claims 2+2=5 it's just natural to clarify that 2+2=4 even when the main subject is something different. When the one who has claimed 2+2=5 still sticks to it's original claim despite shown it to be wrong, than it's important for the main subject that all the other followers of the thread know this poster has no interest in a serious discussion.
Keino's 1500m pedigree is much better than Vasala's, in fact, Keino is one of THE greats (also not in the op 10) in the event, Vasala not.
Including guys like Vasala, Coe, Morceli, El G but not Keino, Aouita, Cacho, Ngeny because of doping just shows your bias and that you can't taken seriosusly (what anybody for sure knows long before).
In the last three seasons Ingebrigtsen has run the 800m on three (only smaller) occasions. To conclude that 1:46.44 just might be close to his limit is just silly. He might ot be capable to run as fast as Cram, but sub 1:45 should be possible.
I think he will not break the 1500m WR during his career, but the Mile WR definitely is possible for him.