yeah, I know what you mean. I do think it's solvable though. one time during undergrad I was talking with Hal Abelson because there was this big stink about t

yeah, I know what you mean. I do think it's solvable though. one time during undergrad I was talking with Hal Abelson because there was this big stink about the new research building (Stata center) requiring rfid's to get around. Richard Stallman et al were making a huge ruckus about the privacy implications of not having physical keys. I mentioned some desired attributes of a protocol to let people in without logging it, and started worrying about the implementation details / feasibility. he said "oh don't worry about implementation. this building has people in it who can implement anything." he had this smirk about him. so give it some experts and time and they'll figure it out.