[not_a_bot_4sho]

> Was that ever actually shown to be effective? Is it still?

Yes! Personas demonstrated measurable improvement in a few different ways, with caveats of course. The common intuition is that personas influence token space in beneficial ways.

I'll come back here later on desktop and link a few (still) relevant papers on this topic.

[shnock]

Please do, thank you! I have been similarly skeptical as your comment's parent

[not_a_bot_4sho]

I added some brief commentary here: https://news.ycombinator.com/item?id=48507278#48511524 (or just refresh parent comment replies to see it)

It scratches the surface really but hopefully provides a helpful starting point.