Usability of this (and anything, really) would improve dramatically if in each system there were one correct way (based on selection by scientific usability tes

Usability of this (and anything, really) would improve dramatically if in each system there were one correct way (based on selection by scientific usability testing) to initiate each task. The "helpfulness" of providing "n" ways of doing the same thing is an illusion and only undermines the ability for users to establish a shared context which can be used to make user actions more automatic for the experienced and easier to teach to the inexperienced.