Cows make milk. They milk themselves. Other cows check the milk (for free). Cows - get this - PAY THE FARMER to take the milk away. Then the farmer (you won't believe this, honestly) sells the milk back to the cows. Sometimes the farmer lets the cow drink a tiny bit of its own milk. The farmer calls it 'longstanding commitment to Open Access'. What Is a Sustainable Path to Open Access? | Hacker News