simplify

Hi all,

I am trying to think of ways that users of all ages can register and authenticate on a site without the traditional username/password. Examples like clicking on a series of images, dragging colored blocks into a sequence, or other 'brain friendly' methods would be great.

What are your thoughts on and experiences with 'passwordless' authentication? What are some solutions that have become popular? What are some innovative ideas that need testing?

Cheers!

--Brylie Christopher Oxley