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It's not clear to me if you are being serious or if this is a joke, but it seems obvious after looking videos of new users that touch screens are vastly superior interfaces than any confusing stuff done with a mouse. You talk about folks having trouble when UI widgets are used in slight non-standard ways, but the abstraction of the pointer and not using basic tactile is the huge leap. And yeah, once you're learned how to use some wacky process to do something you need to unlearn it when it's different, but that's only a problem is people have learned it in the first place. The point is that it's a wacky process to use a "pointer" removed from your actual pointer that is what is so difficult. There's a good video of a 2.5 year old using an ipad, which gives you a basic idea of why touch tablets in particular are so much better. I do think that keyboard and mice are a major problem, but also note that the other issue you mention "multiple applications", "file systems", (let alon...