Your Digital Fingerprint: Is It Yours or a Spectator’s?

Back in the mid-1980s, I wrote about how GPS would revolutionize our lives. One of my books published back then was called Advances in Agriculture, in which I highlighted how GPS would transform agriculture in the 1990s and beyond.

Those predictions came true thanks to smart tractors from John Deere. Farmers can collect data via GPS to determine exactly where in the…