Countries have good economic ideas because of good economic growth. Countries with bad economic ideas have them because of bad economic growth. The only way to escape the latter state is for a statesman to accidently, fortuitously, or randomly, liberalize the country by some degree. Therefore libertarians should support marginal improvements as a step towards anarchy (he doesn’t say anarchy and I don’t think he means to but as most of us are anarchists I decided to slip that word in).
Extrapolating that and transferring it to every other kind of idea, everything either goes to straight down or straight up from the beginning of time except for someone tripping over his own shoelace. Basically, he thinks that that there is no such thing as deduction..