I disagree with the article's assertion that, because I'd forgotten Archimedes' principle, I never truly understood it. I'd successfully worked the problem far

I disagree with the article's assertion that, because I'd forgotten Archimedes' principle, I never truly understood it. I'd successfully worked the problem far enough to realize that my missing piece of information was how much of the ice cube stayed below water, then I watched the video and reacquired that information. No problems here, and the KA video was plenty sufficient for my needs.