People often make the claim that something is “as intuitive as dialing the phone.”
As I was listening to “Dave Birch interviewing Ben Laurie,” I was reminded of this 1927 silent film:
Ben commented on people having difficulty with the CardSpace user interface, and it not being as intuitive as having your email address being a login identifier.
Anyway, fascinating interview. Worth a listen, even if takes twice as long as learning what a dial tone is.