According to Songfacts, Tony Banks explained in the Way We Walk DVD:

Musically, it’s quite a complicated piece. For starters, it’s in a funny time signature, 13/8 or something. Not that you’d really notice that – it seemed more natural to do that than it was to make it 12, which would have been the more normal. Chord-wise, it goes through loads and loads of chords. It’s a very unlikely single in a way. The reason I think it works is because it sounds simple even though it isn’t. I’ve always quite liked that. The Beach Boys were good at that – things that sound deceptively simple but when you actually look at them, they’re really quite complicated.

Also, Rutherford said to Songfacts in a 2017 interview:

I have a slight problem with it and a complaint is that at the moment no one lives in the now. They’re all somewhere else on their screen talking to someone else, doing something else. There’s a big lack of just being where you are, enjoying the moment, blue sky, people you’re talking to.
The screen means they’re somewhere else, they’re mentally not near, and that’s a shame I think. I see families round the table who are on the phone, on the screen. I never allow that in my household. My kids are big now, but the danger is that everyone is somewhere else mentally.