Tech: Sam Ruby on Foo Camp. Foo camp sounds cool; a little bit circle-jerky, but still interesting. But that’s not what I wanted to write about — the thing I wanted to mention was BitTorrent; it just struck me recently — one key thing about BT that makes it great is that it’s designed by the UNIX philosophy — make one tool that does one thing very well, and make it pluggable, so it can be used by other things easily.