What part of that responds to anything I said? I haven't even said (1) whether I believe the effect or not or (2) whether I have or have not experienced that ef

What part of that responds to anything I said? I haven't even said (1) whether I believe the effect or not or (2) whether I have or have not experienced that effect myself. You're assuming I've made a statement one way or the other. In the absence of scientific research, the "theory" is as true and useful as any saying "two in the hand is worth one in the bush", "a penny saved is a penny earned", ...