Russell McMahon wrote: > What you can do is develop systems that target the differences between > the sensors in use and the human eye/ear. This does wonders for the > development of accurate eye/ear emulating sensors. This process is > traditionally known in the behavioural 'sciences' as an "arms race". Reminds me of another "arms race." There is a poisonous newt, whose skin is very poisonous. The reason is it's so poisonous, is that there's this Gartner snake that eats the newt. They say that in the beginning, the newt probably wasn't that poisonous, but the snake started to develop immunity, so it had to adjust by developing more toxin. The snake, in turn, had to adjust too by increasing the levels of antidote. And so on. It's gotten to the point of ridiculous. The snake eats the newt, and lays motionless for a while, paralyzed by the poison (eventually it gets neutralized). Despite the fact that both of them waste so much of their resources on developing poison (newt) or the antidote (snake), the end result is the same. Vitaliy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist