That is not what he said >by helping track the supply chain, the same way that having an air quality monitor can help improve your air quality. It is about ma

That is not what he said >by helping track the supply chain, the same way that having an air quality monitor can help improve your air quality. It is about making them cheap enough to be ubiquitous in the supply chain. Of course some middle-class-to rich people will also have access to personal devices, but the point is to make it cheap enough to become part of the supply infrastructure. Plus if the devices and do real-time reporting of results via an app, this could also even enhance the supply chain monitoring by red-flagging hotspots early - benefits their poorer neighbors too. I have a BIL who's job is water & sewage monitoring. He's told me about how they have sensors at key points throught the system so they can identify when someone is dumping (often illegally) toxins down the drain into the system. The idea is to both find it as it is coming in to be able to make quick adjustments, and also rapidly ID the locale and then the source to stop it. Such scanning systems in the food supply chain could be enormously valuable, and it will require them to become inexpensive and fast. And no, I do not begrudge rich people (even those who became rich via extraction vs creation of wealth) access to the tools - by buying them before they are truly cheap, they help increase production volumes so that it enables the production of cheaper versions.