What is this sharpener?

website says this, and i quoted it......"Handy Sharp has a hardened Tungsten Carbide blade it can bring a knife back from the dead"

there ya go.
 
why does it seem too good to be true? he took an already paper slicing sharp edge, then he rubbed a thing on it for a few seconds and it was still paper slicing sharp... wow, miracle of sharpening technology!

Not saying the thing can't sharpen, but I highly doubt it's some ground breaking way to sharpen. Just another semi guided system that has a material capable of honing an edge.... Guy could have been holding a 600 grit pocket stone and done the same thing, would it have seemed unbelievable?
 
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