To me the following points seem hard to argue against:

1. Oil is harder and harder to find every year (we already took the easy stuff, nobody finds super-giant fields anymore)
2. The peak production year was 2005 with 73.7 million barrels produced
3. The amount of oil produced each year is declining
4. The price of oil (and therefore energy) rises
5. All the alternatives that were supposed to fill the gap are failing to deliver
6. Even oil that's harder to get (e.g. in deep water) doesn't help much as it is generally produced at a slow rate
7. Available energy production rate (i.e. power) drops
8. Since nearly everything needs power to create/mine/produce prices rise
9. Food for example becomes more expensive as fertilizer prices rise
10. The average person is mystified as the price of everything seems to rise at once
11. Business and whole national economies are squeezed by rising prices
12. As businesses fail unemployment increases
13. Politicians are powerless, so promise general feel-good nonsense like "energy independence". Nobody even tries to tackle the problem.
14. Everything continues to get worse, and at an increasing rate
15. Within the near future the lights start to go out.