Coronaviruses are known in animals. In some they mutate too fast for vaccines to be effective. The CDC/WHO made a gamble that coronavirus mRNA vaccines in humans would be effective without normal testing. They came up short, to say the least.
(That’s giving the CDC/WHO benefit of doubt, which they may not deserve.)
I studied the genome. Downloaded it to my laptop. It has an error correction gene which protects against such mutations. It looked like from the outset that it would continue to be a killer like SARS 1 was, but on the other hand the jabs would be effective.
Now we know better (I hope!) What I didn’t imagine was how quickly and easily the copy protection gene itself would get a disabling mutation.
The real kicker is that the mRNA spike protein is itself a toxin! Never imagined that. (I’m no expert mind you.)