If you can't measure it, you can't improve it. - Peter Diamandis

There are now kits that let your plants tweet when they need to be watered, Wi-Fi-connected cow collars that let farmers know when their animals are in heat, and a beer mug that can tell you how much you’ve drunk during Oktoberfest. As Arduino hacker Charalampos Doukas says, as sensor prices crash downward, “The only limit is your imagination.

Greenblatt is not alone in this assertion. Many believe water is an issue of money and will be best solved locally, and without the aid of techie gizmos. It’s an opinion based on hindsight. The last century saw governments dithering while they searched for a high-tech, silver-bullet solution. Millions died in the interim, and the world is full of gadgets either unsuitable for the ruggedness of their deployment area or impossible to maintain because supply chains did not extend far enough.

Six Ds of Exponentials,” or the growth cycle of exponential technologies: Digitalization, Deception, Disruption, Demonetization, Dematerialization, and Democratization