Science Evolves

At left are the words of the late British-American physicist Freeman Dyson, reminding us that science is always evolving in the direction of a better understanding of the universe around us.

The fact that we now have better vaccines against COVID-19 variants than we did in 2020 does not mean that epidemiology was worthless before these discoveries were made; on the contrary it represented humankind’s very best thinking on the subject.