It's about how researchers are reconstructing cross-sections of human organs, using real cells and artificial blood all hooked up to a system of tubes pumping air and liquids through a rubbery plastic chip. It's for drug testing: Instead of trying new medications out on rats or mice, which have limited similarities to humans, we can try them out on this modular cyborg. It blew my brain open.

As it turns out, this is (partly) old news. Biologists constructed a lung on a chip in, like, 2010, I was quickly informed. But this time around, the lung was being connected to a cross-section of skin, which was being connected to a cross-section of a kidney, which would be connected to the rest of the ersatz human body's organs, recreated on chips, all hooked up to the same fake blood valve. Human on a chip.

It's all happening so fast.