I have my doubts about the validity and reliability, but they're on the right track, I think. Polarity and "directions": https://news.ycombinator.com/item?id=

I have my doubts about the validity and reliability, but they're on the right track, I think. Polarity and "directions": https://news.ycombinator.com/item?id=39086848 https://news.ycombinator.com/item?id=39086848 Practice: https://news.ycombinator.com/item?id=39065749 https://news.ycombinator.com/item?id=39065749