Bill Gates has inserted himself into the national dialogue as a self-proclaimed coronavirus sage who will lead the world out of dark times through a digitally-assisted brave new world of testing, contact tracing, and of course - a vaccine.
An even better solution would be the broad, voluntary adoption of digital tools.
For example, there are apps that will help you remember where you have been; if you ever test positive, you can review the history or choose to share it with whoever comes to interview you about your contacts. And some people have proposed allowing phones to detect other phones that are near them by using Bluetooth and emitting sounds that humans can’t hear. If someone tested positive, their phone would send a message to the other phones, and their owners could get tested. If most people chose to install this kind of application, it would probably help some. -Bill Gates