One thing I haven't seen pointed out much as the vaccination campaign moves forward is that this is a rare case in which individual decisions about whether to act responsibly are crucial to the outcome 1/

On issues like climate change, personal decisions are of marginal importance: we can't save the planet by persuading more people to paper instead of plastic or eat less meat. It's almost all about public policy 2/

But on vaccines, it's rapidly becoming clear that the crucial question isn't how many vaccines we can supply, it's how many people are willing to take them. Individual choices to be irresponsible and not take the shots may have catastrophic effects 3/

Unfortunately, given where America is, pointing out the destructiveness of selfish behavior will probably just encourage the bad actors to act even worse ... 4/