The movieMinority Report showed scenes of characters walking through a mall where billboards greet them by name and suggest purchases of products that they would be interested in. How did the billboards know it was Tom Cruise, and not someone else? Biometrics. Biometrics is the science of measuring and statistically analyzing biological data. It could be through fingerprints, retinal scans, facial scans, DNA. Technology is sufficiently sophisticated to digitalize this information and code it into a credit-card chip.
Should we download ourselves? What is the potential upside? What is the downside?