Economics lesson 2
"Economic fact: There can be no cheap housing because landlords won't build housing to rent for lower profits"
If only there was some public organisation devoted to the common public good rather than profit. They could build housing and rent it for affordable rates, enough to cover further building. It would also be helpful if the same organisations were in charge of public transport and were able to decide which public land to use.
Next week Tim demonstrates the impossibility of having an army, since no customer would pay for a tank that might not be used to defend them.