What if John Maynard Keynes, perhaps the most influential economist of the 20th century, had not died tragically young at age 62 in 1946? His brother, Geoffrey Keynes, lived to be 95. Let's say JMK gets the same longevity, meaning he survives until 1978. That would mean he'd live long enough to see the OTL disastrous reversal of the economic policy framework he spent his life advocating for. Would a surviving Keynes manage to change the trajectory of economic thought further than he already had? And would that be enough to actually seriously slow or even prevent the neoclassical counterrevolution in macroeconomic policy starting in the 1970s?
https://en.wikipedia.org/wiki/John_Maynard_Keynes
https://en.wikipedia.org/wiki/John_Maynard_Keynes