A common trope in fantasy and science fiction is the ancient civilization whose vast knowledge was somehow lost to the ages. The idea resonates, because whether we’re conscious of it or not, we all know that knowledge is perishable. Not only do we forget things as individuals, but societies routinely lose vast quantities of information over time. Scholars estimate that 90% of texts from antiquity are now gone, and if you’ve ever tried to access an old computer file on a floppy disk, you know that we’re still actively losing access to old data.

Just over a week ago, I stepped out onto a stage in New York City to join a show, in front of a live audience of 130 people. Tickets to the event had sold out almost as soon as they’d gone on sale. It was, of course, a massive ego boost, though the audience wasn’t there just to see me. They were there for the whole cast of “This Week in Virology,” the podcast I’ve been co-hosting for fifteen years.