Problem is putting too much faith in the vaccine. They still don't know the efficacy or how long it's going to protect. At the moment they are happy to just get a 50% efficacy out of the vaccines so even if 100% of the population is vaccinated only 50% will be protected (we can then hope the other 50% will get a milder run if they do get infected). How long is it going to be before everyone is vaccinated? will it be a requirement to fly? Even with my most optimistic glasses on I can't see any meaningful recovery of aviation this side of summer 2021 and possibly well into '22.