[plinkplonk]

"The obvious interpretation is that he's saying something like "the usual definition of productivity is flawed and myopic, and gets in the way of realizing the power of Lisp". "

Just the fact of him sayng something like that doesn't make it true. More logic, supporting arguments and evidence is called for to support such claims. Besides He isn't offering any (lucid) alternative definition. Just rant after rant , over a period of years. Which makes the whole post (and link to it on HN) very content free (imo, feel free to disagree and vote accordingly).

Yes , sure Lisp is cool. There I said it. But hey Linux is cool too. So is C. So are a lot of things.