Which means that if you’re reading this now—this sentence—on any sort of modern machine, like a smartphone or tablet, they can follow along and read you. They can tell how quickly or slowly you turn the pages and whether you read the chapters consecutively or skip around. And they’ll gladly endure looking up your nostrils and watching you move your lips as you read, so long as it gets them the data they want and lets them positively identify you.
