957
Preservation
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
Rules
I mean, we have thousand years old paper and clay tablets.
I'd be less worried about the depth of the laser than the depth of the corrosion that the metal might face over time.
Glass or ceramic might work better.
laser etched ceramic is just modern clay tablets