We generally accept a probability that 95 out of 100 times this result would be in consequence of our intervention as reasonable proof of an effect and 99 times out of 100 as virtual certainty. But we must make a decision, so we do. When physicists began to realize, in the early part of this century, an implication of quantum theory, namely, that the exact position of an electron could never be determined, but only a statistical likelihood, it occasioned a wave of philosophical introspection, books, articles and at least one suicide. Newtonian physics, with its aura of exactitude, went out the window as the universal paradigm and this was very disturbing to a lot of people thoughtful enough to comprehend at least some of the ramifications. One prominent physicist became so disconsolate over this issue he committed suicide.
Absolute truth is a metaphysical concept.
Some would arrogate to themselves the ability to discern such absolute truths and promulgate them to the rest of us. Thou shalt not kill. Sounds like a wonderful concept. They want to know what is the right thing to do and think that they do know this, often through revelation. The Hindu custom of suttee was eventually extirpated by the British occupation of India and it would certainly seem that this custom is universally reviled.