The average person cannot remember more than 8 characters. So a 40-60 character string of random characters, many of which we rarely use naturally is not really feasible :)

That is so completely not what I said. I bet my grandmother, if she were still alive, could easily remember this 63 character password:

I wish I could walk my grandchildren to school when it is cold%

We all can memorize a handful, but not 50 of them. That approach is cute, but it doesn't scale.

I really do not see the difference between that, mnemonically speaking, and a random smattering of 8 special characters.

Looks like a great tool with a lot of possibilities