The experts I talk to in each community see big flaws in their work, but no show-stoppers.
Everyone's going as fast as they can in unfamiliar territory with big stakes. Smart people with hard problems.
The basic research is old, but properly webizing things is hard, and after ~3 years there are still rough spots.
Both have lots of interesting research possibilities, too.
Not much overlap in currently-working use-cases. (Airport codes)
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