The «air» is here an allegory for «large language corpus». It is self-evidently true that as we move backwards through history we eventually pass the first lang

The «air» is here an allegory for «large language corpus». It is self-evidently true that as we move backwards through history we eventually pass the first language utterance for any given definition of language or utterance. From here on out, the «air» is indeed «thin». There are still other things, but no «air» (i.e. «language corpora»).