Nobody is saying it isn’t useful. Sometimes it is. Sometimes it isn’t. I am saying that in the realm of theoretical science “why?” produces only meta-theoretic

Nobody is saying it isn’t useful. Sometimes it is. Sometimes it isn’t. I am saying that in the realm of theoretical science “why?” produces only meta-theoretical (philosophical/religious) answers that may or may not be relevant to the most pertinent issue at hand: “Why are you asking ‘why’?”. All theories have conceptual dependencies. Necessary mental existents/foundations. Without dependencies (assumptions) the theory doesn’t work. Why is there a Big Bang in cosmology? Why are there elementary particles in QFT? Why is there spacetime in GR? The answer to all three is “pragmatic utility.”. If that isn’t the kind of answer you are looking for… >Do not confuse your inability to answer a question with unanswerability. Similarly, do not confuse unanswerability with your inability to answer questions. That is a good way to waste a lot of time…