Do you mean stuff like Medium's 'magic link' approach? enter email address, get a link via email, click on link: magically logged in! If so, that's exactly wh

Do you mean stuff like Medium's 'magic link' approach? enter email address, get a link via email, click on link: magically logged in! If so, that's exactly what I've discussed with various clients to implement for their projects, because I agree that in many cases it's a really nice and, as far as I can tell, safe approach. Personally I really don't like it, because I have a password manager and I rarely have my email open in my browser. But for many, if not most 'casual' computer users it does seem ideal to me.