Ask HN: Interesting RSS Feeds to Subscribe To?

I realize I am very late to the RSS party but I just set up a feed reader and it's brilliant. I am looking for feeds to subscribe to, can you please share any interesting ones that might appeal to other HN readers? It doesn't have to be about tech.

I tried a couple searches but the resulting pages did not appear well maintained and many of the categories were uninteresting.

What do you read in yours?