the.com/scientism

means The belief that science is the only valid way of understanding reality, and that it can or should answer every question — moral, philosophical, and otherwise — worth asking.

from Built from 'science' plus the suffix '-ism,' the same ending that turns a practice into an ideology (as in 'materialism' or 'nationalism'). The word surfaces in the late 1800s and really sharpens in the 20th century, used mostly by critics — philosophers, theologians, and even some scientists — to accuse others of overreaching: taking science, a method for testing claims about the physical world, and inflating it into a total worldview that crowds out ethics, meaning, and anything it can't measure. It's rarely a label people apply to themselves; almost always, it's a word thrown at someone else's certainty.