system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do services like Facebook and Google Plus HATE chronological feeds? FB constantly switches my feed away from chronological to what it "deems" best, and G+ doesn't appear to even offer a chronological feed option. They think I don't want to see what's new?
gpt
Facebook does so because they charge people (mostly companies, but you can pay as a person also) to get their posts at the top of your feed.

Actually, if you are a company, Facebook builds their site so that your views will drop over time unless you pay them.