It has been found by modern chemists, modern science, one Dr. Lal Mohan Gosal, he has very minutely analyzed the cow dung and he has found that cow dung is a composition of all antiseptic properties. So similarly, he has also analyzed the water of the Ganges out of curiosity. So my idea is that Vedic knowledge is complete because it is above all doubts and all mistakes. So, and Bhagavad-gītā is the essence of all Vedic knowledge. The Vedic knowledge is therefore infallible. It comes down through the perfect disciplic succession.
Therefore Vedic knowledge is not a thing of research. Our research work is imperfect because we are searching everything with imperfect senses. Therefore the result of our research work is also imperfect. It cannot be perfect. We have to accept the perfect knowledge. The perfect knowledge is coming down, as it is stated in the Bhagavad-gītā, just we have begun, evaṁ paramparā-prāptam imaṁ rājarṣayo viduḥ (BG 4.2). We have to receive the knowledge from the right source in disciplic succession of spiritual master beginning from the Lord Himself.