Morrow made artificial intelligences capable of near perfectly imitating humans, in addition to having elemental powers, before computers. Did he receive some sort of superhuman boost to his intelligence, or parts of it, from the same source that the various Reach experment kids in Season 2 of YJ received their superhuman abilities?
Well, in the comics, Morrow -
Not sure if it applies here, but T. O. Morrow's first invention was a device that lets him see into the future.
Dammit.
Anyway, there's no indication he built such a device here, but he could have built something similar - if his first discovery was, say, some of the techniques he used to create a super-scientist robot with his memories, it's possible that he could bootstrap his way from there. Build a better scientist than you, copy yourself a hundred times and have the copies work together ...
It's also worth noting that Morrow used magical techniques. I'm suspicious that this extends beyond the "elemental powers" thing to the actual AI - they have souls, they seem suspiciously human in outlook at times.
And Ivo trained under Morrow.
are the various super scientists considered metahumans, are they something different, or have you not decided? It always made sense to me that if humans already have some special bit that gives them various physical super powers, then it would be needlessly complicated to have something separate to give some other humans mental super powers.
As evidence for this, Barbara Gordon tested positive for the metagene. We don't know if she had the "potential" to become Oracle, but she was at the very least a Batman.
Also worth noting that the various cold guns use the same visual effect; Freeze is both an ice-based metahuman and a cold-based superscientist, while Icicle Jr is an ice-based metahuman and the son of a cold-based superscientist. Killer Frost is an ice-based metahuman, but her blasts still appear to be the same as those of a standard cold-gun.
I'm not saying they're definitely drawing on the same ice-themed powersource, but they totally are.
For that matter, what the hell does S.T.A.R. Labs do all day? All this incredible tech the JL drops on them to study and what comes out of the labs?
They make those holographic computers, tiny but powerful explosives, and weird transforming motorbikes used by the League. And
somebody makes the generic laser guns that are floating around.