I wonder:
- what's the actual oxygen carrying capacity? If they're up to human trials then I imagine they've already validated this step in animals
- can it also scrub CO2?
Without doing more research, I'm putting most of the probability mass into it being be a small but significant oxygenation aid. Not enough to let us survive without working lungs, but enough to push the odds in emergency situations, while also being harmless. Something like 5% extra survivability for a $100 cost and a sore butt. Well worth it, but not a revolution.
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