I watched a documentary that asserted the argument that our population- if not the world population then certainly the first world population- is as high as it is because of oil. I have heard this argument before and it is a strong one- to briefly go into it, if we didn't have the abundant and potential energy oil has, we wouldn't be able to service the cities which produce nothing and import everything. If the cities had to rely on local sources for food and such, they would quickly starve. It is because of oil that we are able to send food all over the world for consumption and therefore sustain the world population. This brings up the concept of peak oil and its ramifications. The documentary asserted that X will happen to oil production causing a spike in oil prices then when X is fixed the price goes down- but not back down to where it originally was. In other words, the price of oil is slowly going up as we reach peak oil. I think it's a given that everyone here agrees with the notion of peak oil and most of us agree that it's going to happen sooner (within the next 10 years or so) rather than later (20+ years from now). What are the ramifications of this to the human population? What will happen when gas and oil cost $6, $7 a gallon? What do you think is the timetable for this and do you think we have the means to sustain ourselves when peak oil hits?