This is a thread for theories which may be far-fetched at first glance, but to which you actually subscribe! Here are a few of mine:
1. I think humanity's obsession with disaster porn (e.g., 2012) and dystopian societies of the future is a subconscious expression of their frustration at their lack of understanding of the world around them, and of their perceived powerlessness in it. The world is a big place now. Technology is increasingly hard for laypeople to understand. The social power structure seems as inaccessible as ever. Pop culture is as devoid of insights and patience as it ever was. Yet there are no mass die-offs. The world doesn't end. Life continues every day. For the powerless, the disenfranchised, the superficial, and the willfully ignorant, it must feel a little bit like Hell. I think they think destruction is the only change that humans are really good at. It transcends the political spectrum. It seems to be a symptom of Western success, success in which many individuals feel they do not share and cannot trust.
2. I think fat-bashing is so bad in our society not because being fat is actually as terrible as we make it out to be, but because the worst bigots are, variously, jealous of fat people's perceived freedom and satisfaction, or actually find fat people to be attractive and are in the throes of sexual denial. (And sexual denial, of course, is one of the most virulent sources of human hatred.) In both cases, the bigotry against fat people actually makes things worse for the bigots. Hatred is often like that: It doesn't just harm the innocent. It is self-destructive too. Notice, also, that bigots never scrutinize themselves the way they scrutinize their victims. It's always about health, economics, and the environment for them...all of which are red herrings. Never is there any outward indication of the jealousy or denial which I theorize to be most bigots' true motivation, which would make sense.
3. Western society will, in this century, leave behind the consensus-driven philosophy which has seen our power structures increasingly hindered in recent decades by the dilution of executive authority into committees, councils, panels, and boards. This will reverse a trend that is now half a century old. The reason we will leave it behind is simple enough: It doesn't work. Deceptively, at present the trend is only intensifying and there is yet no obvious sign of a retreat. In the meanwhile, what will not change is the growth of networking which has accompanied the growth of the consensus-driven executive. New construction, for instance, will continue to have to get environmental approval.