Her possible survival has been conclusively disproved. The doubts lasted until 1940, when in similar experiments Abraham's theory was conclusively disproved. Four months later, the filibuster conjecture was disproved. Many theories have been disproved as a result of this bias being brought up . Other officials drew similar conclusions, despite discovering and citing facts that disproved their thesis. New theories make predictions which allow them to be disproved by reality. This conjecture was disproved in the mid 20th century. However, archaeological investigations have disproved this notion. These accusations have been disproved, however. This conclusion was not disproved in later experiments. Many of these proposed benefits have since been disproved through scientific study. Statements are disproved by deducing a contradiction from them. This theory was eventually disproved when Captain Cook circumnavigated New Zealand in 1769. Research has disproved some common misconceptions about the brain. Economic arguments against reducing working hours had been disproved by decades of experience.