For the quants here I read this paper on using PCA to predict price I was wondering if it would yield any alpha? Surely it can’t be as simple as shoving price data into a model, but what else am I missing? The paper says it was able to predict short term price movements. I need some guidance I’m a noob

> https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0230124