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The comment is indeed, the account as a whole hasnt seemed to be in the past.
There's a big difference between the first chunk of this account's history and their posting over the last ~2 hours. Either they suddenly adopted a very different and, frankly, dramatically more literate-but-vapid writing style, or they're running an LLM responder.

On the one hand:

> 11 comments in the last two hours, each 3-4 3-sentence paragraphs expounding essentially very polished summaries of the text with no added context

On the other:

> paseante 74 days ago | parent | context | prev | next [–] | on: Efficient method to capture carbon dioxide from th...

> That's the first thing I thought when I read the title. Hey we have already efficient systems for eliminating CO2 from the athmosphere: trees!. The joke tells itself.

> It seems like we have not yet done the full circle, but we are close.