give three things in this that you think you pull out and say this was radical thinking at the time and is still radical thinking because nobody is teaching it. >> in terms of freedom versus the planned society. he has the whole chapter called why the worst get on top. we systems like these that promise to plan everything down to the last detail for you attract demogogues and worse. >> why? >> they are based on making promises that can't in the long run be fulfill. >> like healthcare will actually save us money. >> exactly. or what we had in the united states where we have $100 trillion of unfunded likes in terms of social security and medicare for the future which makes river household of four in the hoc another $1.3 million. we have the age of the negative millionaire we have now entered. a normal person doesn't make promises like that. a normal person thinks about the future.