The book covers some earlier aspects of the strategy. And I think the "spirit" of the strategies exists today, though tangibly very different and not actionable.

no. One can infer it involves analyzing data, but for obvious reasons the ingredients for possibly reconstructing it are omitted.

I believe they were doing ML based trading. Their edge was data collection, cleaning and standardisation and the ability to trade a lot at very cheap borrowing cost. This was way before computers became a thing in trading or ML became a thing.

> Does the book cover anything about how the fund actually works?

Basically, no.