I don't think he's saying vaccine creation is easy, I think he's saying it's a hard problem that needs a concerted effort at developing shortcuts.
Also, this is technically true, but vacuous:
> What is stopping you from making a vaccine for COVID-19? I can promise you nobody will be upset with you if you do it, you don't need anyone's permission either.
Even if by some herculean effort and unbelievable luck, I brewed up a Covid-19 vaccine in my garage, I would be unable to help people at scale with it unless it passed millions of dollars worth of testing for regulatory approval.
Also, this is technically true, but vacuous:
> What is stopping you from making a vaccine for COVID-19? I can promise you nobody will be upset with you if you do it, you don't need anyone's permission either.
Even if by some herculean effort and unbelievable luck, I brewed up a Covid-19 vaccine in my garage, I would be unable to help people at scale with it unless it passed millions of dollars worth of testing for regulatory approval.