Why don't people get peak oil seems like one of life's great mysteries.I have mentioned PO to 15 or 16 people, and I've STILL yet to make a convert, The reactions I've got have been denial or an immediate change of subject.
But I came across an interesting article a day or so ago (can't find it again despite going through my browser's history ) that gave what I think is a pretty good answer. It was saying that to really understand things like peak oil it can take years of study first which is why only a small percentage of the population, activists, specialists etc., ever do.
This makes a lot of sense to me. I think you can understand PO at a superficial level pretty quickly but that's quite different from that deep conviction that THIS IS GOING TO HAPPEN. There's a line in the Transition book: If peak oil doesn't scare you then you don't really understand it yet.
I've got a doctor friend who's pretty open minded and has fairly radical beliefs. I was asking him some months ago about peak oil and if he knew about it. He described fairly nonchalantly that he understood it, that it was very serious and that it implied society would collapse. But it was obvious that faced with such an incredible prospect he wasn't going to anything different in his life and just carried on the same as if it wasn't true at all. So I think he had this superficial understanding of the problem without really getting it.
I think our beliefs are massively shaped by our culture. For instance if we all lived in the Middle East the chances are we'd all be devout Moslems. We may not like to admit it. We prefer to think of ourselves as independent thinkers etc. but statistically the reality is we'd be looking to Allah for answers.
I think this is true in climate change too. Ostensibly a huge a percentage of the population now understands it but for most it's only at that superficial level. The thought for those people is that if it really was that serious a lot more would get done about it right? But for most people the seriousness of climate change is negated by the actions of our culture; in the way it carries on as if there was no such thing. Subconsciously this goes on every time you go out into the street, or switch on the TV or radio. And this can only have a powerful effect on weakening one's beliefs about the subject.
So faced with the idea that it will take most people years to get their heads around peak oil it leads me to two conclusions.
First that there's no reason to get frustrated when people don't get it. The best one can hope for is to provoke some interest in the subject. Like that line in the Matrix, "No one can tell you what the Matrix is, you have to see if for yourself". If talking about peak oil, or showing someone a film inspires them to read book about it then maybe at some point they will see the reality of it for themselves.
Secondly, since we obviously don't have years, rather than hopelessly trying to convince the general population a better strategy would be to work with those who already do get it. I also think young people can gain a grasp of PO more easily than older people. Our ability to make new connections in the brain apparently dwindles after about 25.