hi, we al know how much suxs having all the data and password you use to register over so many forums, shops, webs, blogs, social networks and so on,
its truly a pain in the ass and a lose of time,

Bitcoins and Trezor Hardware wallet is making the wish of any security bank, as trezor just sen to the comptuer the signed data without sharing the private keys, and as its like electrem, and it uses deterministic address generation, even if you lose it, you can recover all your bitcoins.

Now: this is in my opinion top grade security where a mecanical button push is the single way to confirm a payment.

What about use some system like that to register in webs, login into any way and have logins safe? to login you would need just to "send bitcoins" pushing a  button, the system receive the bitcoins and without the need to get confirmations, you are validated and logged in,

the idea is to do something like that parallel to bitcoin or so, in order that there is no need to have money, but use the idea to sign the login then be able to login and register everywhere just by saying "check out the signed data, that proofs i am the legit user, let me go in".

Well, i can't think exactly about the inner working, buy maybe you can see a better shine about that, maybe in the future notebooks will have a build in "login" hardware button