Neologism for a neologistic age: "Minimum viable user"

In my recent comments on Google Chrome, I tossed out a phrase describing the lowest-skilled user a product might feasibly accommodate, or if you're business-minded, /profitably/ accommodate. The hazard being that such an MVU then /drags down/ the experience for others, and in particular expert or experienced users. More to follow.

First, this appears a new coinage:

https://duckduckgo.com/?q=%22minimum+viable+user%22
#tootstorm
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Feature #4 was a major problem, but the underlying one was, and remains, I think, the mismatch of comms channels and cognitive capacities a phone represents: audio, physical, textual, and short-term working memory.

The physical interface of most phones -- and I'm referring to desk sets here -- is highly constrained. There's a keypad, generally 12 buttons (not even enough for the impoverished Roman alphabet, let alone more robust ones), and a handset, plus some base. Cords.

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