This is an incredible article.
From April 2020: "โฆ predicts we wonโt see a vaccine approved until at least 2021 or 2022, and even then, 'this is very optimistic and of relatively low probability.'" https://t.co/GpwIIo7rkM
โ Lauren Gilbert (@notanastronomer) April 26, 2021
There was a range of โexpertโ opinion then.
A great many, though not quite a majority, believed there would never be a vaccine created as โthere had never been a successful coronavirus vaccine.โ Not realizing or thinking about of course that no one had really given it a serious try before as there was no money in it.
Beyond that, there were many who said a vaccine might be possible in 4-5 years. And some said that a vaccine might be available in late 2021 or 2022. Shows how unknown the shape of the future is, and that previous constraints (as with Medicare for All being โimpossibleโ) are completely artificial.
We create our our own limitations, which then have multitudes of โexpertsโ claiming it really couldnโt be any other way.