https://twitter.com/AndrewYNg/status/1736577228828496179

This is one of those perspectives that feels wise but I quite disagree with. Consider Covid in Jan 2020. At that time, was it right to focus on (i) actual current realized harm, or (ii) hypotheticals based on projecting exponential functions? Clearly (ii).

We know with great certainty that people will use fear of future potential harm to legitimize doing massive amounts of real harm today.

Using the precautionary principal to guide one's personal choices is good.  Using it to legitimize removal of liberties or murder is not.