Yep, Pivots made a world of sense when the mid-size CRT achieved affordable price point economies of scale and TPD prices were still in the stratosphere..
The first GUI was developed at Xerox PARC, when SJ took the tour it had a Portrait/Full Page Display. It was optimized for doing word processing. The Mac couldn't hit a salable price point with anything but the Periscope/Half Page Display in its cute little Hobbit form factor and didn't drive enough pixels for WYSWIG display in Full Page Mode.
The Lisa would have looked silly with a portrait and Spreadsheets were the killer app for business. Landscape mode it optimal for for business market machines like the Lisa and the IBM PC.
By the time the concept of Network Computers came around, there were plenty of pixels available for FPD and anyone using a lowly Network Computer would have been shuffling papers while the graphics types, engineers, movers and shakers would be working on TPDs hooked up to
"real" computers with large, fast, and secure local storage.
IMO based upon casual observations and personal prejudices. [

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