instead of money or banks what about the barter system 2011

instead of money or banks what about the barter system in 2001????.

The only exchange system than can exist in peak energy and post peak to me is barter. You are making assumptions that money is neutral which it is not, especially when it has no intrinsic value, people will revert to grain based money or something like it.

Imagine a whole country going shopping every day with a cow or grain or gold currency. Just one day of that would require a huge, wasteful, unnecessary expenditure of muscular energy. People will tire quickly of having to "lug" their money around. The last thing you would want to do in an energy poor world is buy big-ticket items with "grain money". You know, like: "Hey man, I brought your money over. It's parked out front in that convoy of horse drawn wagons."