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It's getting a bit mad,but they're pushing the boundaries of what can be done, so I'm giving them some credit. It's what manufacturer's do, it's not a real world application that will benefit anyone, just an exicise in what's possible (and no doubt unaffordable as well) you could even say the same about extreme water resistance. Somebody somewhere will always want (and want to make) " the best a man can get" mad,expensive,tenuous claims to be so much better than the predecessor (and in the case of razors no real proof of the benefit, as the only tests were carried out by the manufacturer's). But it's human nature, and we are the maddest species of on this little rock, let the madness continue.