CGMs are life-saving tools for people with diabetes. I wore various brands for several weeks, and to be honest, it led to some pretty disordered behavior! Maybe my fault. Maybe tracking chemicals in your blood in real time is also just not necessary.

Mark Makary, the new FDA head, told Congress that more healthy Americans should wear CGMs. Casey Means, Trump's surgeon general pick, happens to run a company that sells CGMs.

To be more specific, it's terrifying not because it's so good but because it stands to break the web as we know it — which has been pretty good for nearly four decades.

Dust storms: Never a good omen economically speaking