In 1918, the Spanish flu killed 50 million people worldwide. It still ranks as one of the deadliest natural disasters ever.
I had hoped that hitting the 100th anniversary of this epidemic would spark a lot of discussion about whether we’re ready for the next global epidemic. Unfortunately, it didn’t, and we still are not ready.
People rightly worry about dangers like terrorism and climate change (and, more remotely, an asteroid hitting the Earth). But if anything is going to kill tens of millions of people in a short time, it will probably be a global epidemic. And the disease would most likely be a form of the flu, because the flu virus spreads easily through the air. Today a flu as contagious and lethal as the 1918 one would kill nearly 33 million people in just six months.
Sobering stuff. The rest of his update isn't so gloomy. I recommend giving it a read. He is definitely working on some of the most interesting things he could possibly be spending his time and money on.