It's kind of unfortunate that we have hands suited for holding portrait screens, but our sight/vision is in landscape.
It's kind unfortunate that we have a big world, 8 billions of people to select subsets to meet, thousands of things to do and see, and we're glued to screens for multiple hours per day to the detriment of other activities, to the point of lamenting our landscape oriented vision.
It was not so in the era of button phones which typically have the lower half of "facade" filled with buttons.
Yeah but those screens were tiny. If you want a decent size landscape screen to hold naturally, you need to do something crazy like the LG wing with its flipping screen.
Why not to stream a round-shaped video which would let the viewer to choose either he wants widescreen or tallscrean?
Because composition would be bad on both.
the compromise is square...my prediction is well get there in 10 years time
I've always liked square format for photography :)