Torrent heuristics
Does anyone knows if torrents use any kind of heuristics to decide which chunk they transfer? It would make sense to transfer the least available chunk first (although this might not be straight forward to calculate). This comes up because I'm downloading a (perfectly-legal-recently-released-remindful-of-my-youth, ahem) piece of data where there are 10 seeders and almost 20000! leachers. I would say that about 90% of the people have roughly 81% of the file and it was extremely fast to get to this point. The rest of the file is taking ages and everyone is still synchronized on the same amount. I'm suspecting that the seeders are sending the file in order to other peers... this sucks!
