> It's not dishonest. It's a very adequate answer to the over-simplifying claim above.

I would disagree that calling it "rushed, experimental, and not necessary for [the original commenter]" is an over-simplifying claim. Indeed I find the "we've done theoretical research with platform X for years" to be the oversimplification. That being said I do agree that there is a difference between an experimental platform and a new platform.

> But again: why would you want to wait for several years in a situation like this when we do have a pretty clear picture of both the worst case risks of the vaccines and the risks of the disease (which are higher than the worst case risks of the vaccines).

Starting with the "higher than the worst case risks of the vaccines" part, FWIW, this is true in general but not for all individuals. For someone like me (20's, active, no major health conditions), the acute side effects of getting a SARS-2 vaccine far outpace the expected level of symptoms from SARS-2 infection itself. (Speaking from a personal risk reduction standpoint only, I don't want to get into the ethics of medical collectivism for the purposes of this discussion). I don't think you would dispute that, but just wanted to mention it because it's because taboo (and indeed you can get actively censored) to say "for my specific health circumstance the vaccine is more dangerous to me".

As for the more general point about understanding the risks of the vaccines and the disease fairly clearly, I would say that we understand the virus far better than the vaccines. Indeed it really saddens me how we've wasted public health dollars on messaging to people that immunity to reinfection is not a thing (when it is most definitely a thing) and to be super spooked about variants despite the fact that SARS-2 is not going to magically mutate away from the spike protein anytime soon (i.e. there's plenty of epitopes for our immune system to work with even for the highly artificial immunity produced by making the body's cells manufacture spike protein exclusively).

I will grant though that we have bounds on how bad short or medium-term adverse reactions could be to the vaccines. Personally I worry less about the (using mRNA as an example here to illustrate a general point) "it's going to turn me into a human GMO" pseudo-argument than I do things like (a) "is the rate at which spike proteins get produced in the body much more of a steep increase followed by a steep dropoff leading to greater potential for acute inflammatory episodes than via naturalistic infection" as well as (b) "could we be over-sentitizing the immune system to react too strongly when it detects spike protein, particularly for those who already had COVID-19 before ever getting the vaccine". If you're not aware, an absurd amount of people who have already gotten COVID-19 and therefore have naturalistic immunity are still getting the vaccine, either because they're "required" to (aka they don't know or want to fight their job's requirements) or more often because they've been brainwashed to think that the variants evade natural immunity which is just a total media-propagated falsehood.

> In the case of SARS-CoV2, they could build a lot on the experiments from SARS-CoV1

Totally agreed and I wish more people knew that the virus causes COVID-19 is called SARS-2 and that it is directly related to SARS-1 (I'm referring to layfolk here). As a separate tangent I wish more people understood that the emergence of SARS-2 means we don't really need to worry about SARS-1 anymore because anyone exposed to SARS-2 will be cross-reactive with SARS-1.

> I've already mentioned this, but if the vaccine candidate doesn't get ready on time because of the above reasons, then you may have to wait for years before you can do a phase3 trial because there will be no people getting infected, so you won't be able to measure the effectiveness.

This is simply not the case for an endemic seasonal respiratory virus. You'll have plenty of cases, especially since we're basically PCR-testing the whole globe (I don't think we should be, to be clear). But I totally agree that the apparent benefit of vaccines declines exponentially as time goes on, particularly with SARS-2 where the fact that it is deadly for the very elderly and harmless for the very young means that yearly recurring mortality is going to essentially vanish after it's propagated through the current world population (as an aside, this fact is one of many reasons why all the hysteria around the virus was absurd from the get-go; amortized over several years the mortality of SARS-2 is entirely unremarkable)

> But again: why would you want to wait for several years in a situation like this when we do have a pretty clear picture of both the worst case risks of the vaccines and the risks of the disease (which are higher than the worst case risks of the vaccines).

Yeah, to conclude I want to bring it back to my earlier point which is that once the virus has propagated through the current world population (more or less), the set of SARS-2-naive individuals will become dominated by the very young, who are not at real risk of COVID-19 and therefore they will develop immunological memory while young when they are incapable of being harmed by SARS-2. This means that recurring yearly mortality will fall off a cliff (albeit, if we keep labelling deaths the way we do we won't see that reflected in the numbers nearly as much as we should). Which is why I think the restrictions and everything else, even if they had worked in places like the US or Europe where they totally failed, were always a bad idea. But the other side of that coin is: yes, insofar as you do think SARS-2 is something worth really freaking out over, we absolutely have to rush the vaccines because if we wait 2 years then there won't be any real COVID-19 deaths left to mitigate.