Again, I think the form the information is taking, not the information itself, is what is altering how we think because it is now given to us in short bursts rather than long dense pages.
Mis-information, whether deliberate or merely mistaken, is certainly not new. Some of the pamphlet writers in the 18th century could give any commenter* a run for their money in the rant-and-flame department.
(*I'm thinking of the ones on the gadget blogs, not the gentlefolk here.
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