A lot of progressives take pride in the Progressive Era in US of the 1900s which they say brought activist government and ended laissez faire in America.
And then the same people say that the Great Depression was first marked by non-interventionist policies by a laissez faire government.
But even I digress. This topic is about General Theory only.
Yes Epicurus, and Lionel Robbins is Salvador Snape, the Slitherin who was expected to side with the evil malicious liquidationists of Hayek Voldemort but went with John Maynard Potter instead.