Delivering the 2nd S V Narasimhan Memorial Oration, organised by Bharatiya Vidya Bhavan, Dr Ramakrishnan said that just as good system of government guarded people from their worst instincts, the process of science "protects us from our biases and irrationality." "Scientific methods protect us from the danger of false beliefs. No system that does not incorporate proper testing, criticism from peers and other checks of modern science can claim to be 'scientific' regardless of the scientific jargon used," he said.
Quoting examples from history, such as disproving of Fleischman-Pons ideas of nuclear fusion at room temperature (cold fusion) and Linus Pauling's claim that huge doses of vitamin C can keep away cancer.
Dr Ramakrishnan said homeopathy had been advocated for life-threatening diseases like AIDSand cancer, for which there are real effective medicines, while astrology can be abused and used to influence decisions. "Both can lead people away from taking more effective actions based on logic and contemplation. A culture based on superstition will always do worse than that based on science," he said. He added that doctors could, however, use the power of suggestion to enhance the effect of their medicine.