Moore's Law is nice, and can surely be applied to shaving technology. But I think more apt is Occam's Razor, which, as wikipedia defines, states that "the explanation of any phenomenon should make as few assumptions as possible, eliminating, or 'shaving off,' those that make no difference in the observable predictions."
Which is to say, if you can shave adequately with one razor, why overcomplicate the problem?
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Moore's Law is nice, and can surely be applied to shaving technology. But I think more apt is Occam's Razor, which, as wikipedia defines, states that "the explanation of any phenomenon should make as few assumptions as possible, eliminating, or 'shaving off,' those that make no difference in the observable predictions." Which is to say, if you can shave adequately with one razor, why overcomplicate the problem?