Scientism: Unlike the use of the scientific method as only one mode of reaching knowledge, scientism claims that science alone can render truth about the world and reality. Scientism's single-minded adherence to only the empirical, or testable, makes it a strictly scientifc worldview. Scientism sees it necessary to do away with most, if not all, metaphysical, philosophical, and religious claims, as the truths they proclaim cannot be apprehended by the scientific method. In essence, scientism sees science as the absolute and only justifiable access to the truth.
Scientism is the opinion that science and the scientific method are the best or only way to render truth about the world and reality.
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https://en.m.wikipedia.org/wiki/Scientism