It was available earlier. Here's the HN history:

https://hn.algolia.com/?query=Chomsky%20and%20the%20Two%20Cu...

The oldest submission is from 15 y.o ago - that is 2010.

I resubmitted it - thinking - with the success of LLMs - felt this was worth a revisit from "how real-world scientific progress works" point of view.