I was gonna go through these individually, but I think instead I'll just point out that, while some of your statements are just plain incorrect, to the extent that they ARE correct, scientific claims being disproven has always been the result of better science. Science is a process, and doesn't make proclamations of truth. It simply represents the best understanding and explanations we have based on current data. When new data is discovered, the scientific understanding is changed to account for it. So, if you want to maintain that spanking children is actually effective and not harmful (the topic we started with), you're going to have to actually demonstrate it by doing better science than the science that says the opposite. I'm sorry, but it's just not good enough to say "sometimes science is wrong, so I'm justified in rejecting anything that it says with which I disagree."