Well, that's technically false [1]. Metal laser cutting/surfacing is common. My point was (besides ionizing radiation), it's not the wavelength that matters, it

Well, that's technically false [1]. Metal laser cutting/surfacing is common. My point was (besides ionizing radiation), it's not the wavelength that matters, it's the intensity. I changed "steel" to "rocks" to help make the point clear. [1] https://www.youtube.com/watch?v=r5vsUta5lmo https://www.youtube.com/watch?v=r5vsUta5lmo https://fairmontmachinery.com/30kw-on-1-inch-steel/ https://fairmontmachinery.com/30kw-on-1-inch-steel/