When they built "all this infrastructure", which despite your claims, I really don't think is all that much, no one knew for how long the vaccines would be effective, they didn't know if they would be effective at all when they started spending the money. So I doubt that the analysis was that it has to be an annual thing for it to be profitable, to make a decent return. Or that they are scamming somehow to make you get another shot, which is the implication. I saw an estimate that it will be 4 years before the rest of the world is mostly vaccinated, that's a huge market right there. I saw the CEO of Pfizer interviewed and he said he gave the order to do what it takes to get a vaccine back in January 2020, before Covid was even detected in the US, that they would commit $2 bil to the effort, if needed. Which kind of shoots the "Trump did it" claims. And I know you'll say, $2 bil is a lot of money, but I doubt they spent anywhere near that and they have already sold hundreds of millions of doses at $20 a pop. Pfizer estimates 2021 revenues from Covid vaccines at $15 bil. Expand that out to how many first vaccinations they will rack up for the whole world and all your big infrastructure spending is a drop in the bucket without revenue from additional booster shots.