Yep. People love to cut down this argument by saying that a few decades ago, people said the same thing about calculators. But that was a problem too! People losing a large portion of their mental math faculty is definitely a problem. If mental math was required daily, we wouldn't see such obvious BS numbers in every kind of reporting(media/corporate/tech benchmarks) that people don't bat an eye at. How much the problem is _worth_ though, is what matters for adoption of these kinds of tech. Clearly, the problem above wasn't worth much. We now have to wait and see how much the "did not learn through cuts and scratches" problem is worth.