He's an epidemiologist, and I think people aren't listening to what history is saying about the possibility of things. People accept 18 years or 18 months because they're trained to live in a sclerotic bureaucratic hellscape not because those are actual limitations involving long periods of time.
There was a thread last night about people worrying that improvised ventilators aren't FDA tested or whatever. That's a great thing to worry about in soft times. If I (or a member of my family) am facing death while waiting for a ventilator to save my life, I'll take my chances on the doodad cobbled together from a CPAP machine without FDA approval. Same story with vaccinations.