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Why can't we go back to small phones?
(www.spacebar.news)
This is a most excellent place for technology news and articles.
Because, for a touch screen, the screen itself IS the user interface. Imagine while holding with one hand, you want to reach your thumb to the opposite corner to hit a button. Even if the body of the phone is the same, a larger screen will need a bigger reach for your thumb. That is primary issue.