At a time when the miraculous success of vaccines has transformed the battle against the pandemic it is fitting to recall the general idea, and unexpected history, behind vaccination, writes Matt Ridley, bestselling author of The Rational Optimist and How Innovation Works.
Paradoxically, it is the evolution that has brought us here. Because we humans live in a kind of middle world. We have a hard time grasping that which is really big, slow, small, and fast. Now is the time to change that.