Ophelia, They're using its fuzziness to create cryptic communication systems (et.al, if the system doesn't "observe" the information it can't be seen by snooping devices that look for the "observation" within the system to reveal the communication). The concept was derived from the "schrodinger's cat" paradox. Edit: Once the observation happens, the information changes "form." You said: Attempting to hold two mutually exclusive beliefs in one's head at the same time is a good reminder that we don't know everything there is to know, and that "there are stranger things in heaven and earth than are dreamt of in your philosophy." My response: Which is precisely the reason why I brought it up. Some hard core scientists believe they aren't involved in fuzzy logic instances or concepts outside concrete proof, but that's becoming more and more a case of self-deception than anything else. Believing in something you cannot see because you can observe its effects on some "x" factor, is pretty much the same as religion. EDIT: You said: Edit: I'm a little confused. Are you just suggesting that religion plays a role in science too? I won't deny that--I think it plays a role in everything. I won't try to convince non-theists of it, since I don't think you can argue someone into faith, but personally, I don't deny it at all. My response: Yeah, that and science can't claim it doesn't engage in similar activities to religion, as they are attempting to answer the same questions that religion does, just on different topics, related and marginally-related to each other.