What? It’s reassuring to know that you’ll stay supported as you age, like your aunt and uncle are doing. They’ve signed up for a service that facilitates connections between their friends and helps them to make new ones. Groups rely on each other for everything from daily motivation to sharing experiences with new medical procedures.This group even shares their health vitals in real time for an extra level of support.

So What? Health communities proliferate in the global health economy, tapping the collective intelligence in their...

What? Does skipping that cookie really make a difference? How will my body react to a new drug? Don’t leave these questions to guesses or theory—simulate them! You upgraded to a home super computer just so you could run this software, a simulation of your own unique body running 24/7. It helps with long-term planning and immediate decisions, and updates in tune with your blood chemistry. If only it could simulate asking the boss for a raise.

So What? The burden of empowerment eases off as health simulations take the guesswork out of self-management...

What? Who says the corporationis always right? Your augmented-reality glasses know where you are and what you’reseeing, and they display information relevant to your interests. Some infocomes from traditional sources, but much more comes from everyone else, likethis warning about the true ecological impact of cheap imported veggies. Anygroup can have an influential voice, on and off the computer screen, andfinding like-minded people is easier than ever.

So What? User practices evolvewith the technology infrastructure, and biocitizens...