Wait... this guy actually engraved Leonardo's "The Last Supper" along the edge of a razor.

At first I was hoping that, being a non-native speaker, I misunderstood something. But no, it's really the cutting edge we're talking about here.

This is crazy. I mean, the fact that you need a microscope to look at this kind of art makes it seem more of an exercise in style than anything else, but it's still awesome that someone is able to carve the freakin' edge of a razor.