New Worlds: Disease

[swan_tower]

My lovely Topic Backers for the New Worlds Patreon have selected “medicine” as this month’s theme — which was supposed to begin with a different essay, only halfway through writing it I realized that a) it needed to be two essays and b) I had also started in the wrong place. So we begin with disease itself, and the mind-boggling extent of its effect on our history and our world. Comment over there!