Over the past eight years, the Bush Administration has elevated no-nothingness to an art form. Whenever confronted by facts they didn't like, the Bush team challenged the facts and asserted that their version of reality was correct, even when they didn't have evidence to support their claims.
Example: Dick Cheney's assertion that the U.S. would be "greeted as liberators" in Iraq.
Now comes Sarah Palin with her own brand of no-nothingness. Palin's exudes bravado and confidence, but it's a superficial pose.
As almost every thinking person knows by now, Palin is enormously uneducated on matters foreign and domestic. She displays a remarkable lack of knowledge, training or understanding of almost every significant political or policy issue of the era—as demonstrated her failure to name a single Supreme Court case she disagreed with other than Roe v. Wade.
Now comes Palin's profound misunderstanding of science, as people much smarter than Sarah Palin have pointed out here and here.