It's a fair point, but I'm not that worried about more logins. We're already being pushed this way by Big Business wanting more and more users to mine/advertise

It's a fair point, but I'm not that worried about more logins. We're already being pushed this way by Big Business wanting more and more users to mine/advertise towards. I worry a little about normalizing on fingerprints, but not because tin-foil-hat thinking about tracking. Those can certainly be ordered/forced by a judge, where passwords/codes are less well defined. I'm not up to anything shady, but I fear an authoritarian government. Let's consider PINs, too. Those can be used instead. How many of these are people going to memorize? Many passphrases become one relatively easily guessed number on a device you can lose Implementation details, surely - and I'm really green... but I worry about unintended consequences a lot