The ability to read is not enough; one needs to understand the
concepts the words refer to. There is also a selection bias issue
here. Even if it were worth these people's time to go research these
particular issues you have identified, from these people's point of
view these issues are mixed in with hundreds of other issues which are
important to them, and where they suspect common practice is mistaken.
Should they go to the library to research *all* such questions?
Anyway, we have moved away from your claim that you can easily
generate examples to demonstrate the ubiquity of "opinion divergence
on matters of fact, where each side knows of the other's opinion".
Your only example so far is of religious fundamentalists, which still
leaves open the possiblity that aside from religious wackos, most of
us are reasonable people. A better example for your case might be the
OJ trial, though opinions on race come close to religion in many ways.
Robin D. Hanson hanson@hss.caltech.edu http://hss.caltech.edu/~hanson/