[hanselot]

I think you are missing the point entirely.

If you want to know what the consensus of a specific echo chamber would be (aka, what the stereotypical pov is), having models trained to represent that echo chamber would be incredibly valuable imo.

If you want a sum of all echo chambers, you will obviously need the echo chambers to sum first.

[bsenftner]

This is a key take away: anyone in office, seeking to be in office, seeking to introduce new laws can use demographically tuned models to test and revise communications about their intended behaviors for each demographic, crafting language that renders each demographic accepting of the idea, regardless of the idea itself. Oh, Pandora!