@The Pentacle Queen,
I needn't bother with the link. Boredom with the mechanomorphic cosmology of modern science and industrial organisation which is characterised by a sense of a lack of significance and purpose in times of peace and prosperity.
When the Universe is regarded as a great machine pointlessly grinding its way to stagnation, decay and death what else can be expected? Finding something to fill up this hollow pointlessness with external stimuli is only natural. Reading newspapers, getting vicarious thrills from movies and soaps, tapping the feet to pap music, idle chatter, sport and having a good time are only okay up to a point. An occasional demo is thrilling. And the cops enjoy it too. It gets them away from the dreary paperwork and office politics and gives them a sense of mission.
War is best but it's a bit messy. A demo is a nice comfortable substitute. One can be heroic and then go off to dinner.
But generally, when it is all over and the dust has settled, disillusion, fatigue and cynicism succeed the enthusiasm and a need for even greater and more intense distractions sets in and planning begins for next time.
The laugh is that in a pointless and meaningless universe a demo can be thought of as having a temporary and partial significance.
What it's like for non-smokers I shudder to think. Watching wisps of smoke from my cigarette float into and interact with the sunbeams bathing my sofa does it for me. Art is about patterns of light. (And sound).
I remember when I was your age that I could blow a large smoke ring when lying on the NAFFI snooker table and send a series of smaller, faster ones right through it.