Define “a 100 times sharper…”. I’m curious to hear that description.
https://record.umich.edu/articles/surgeons-use-stone-age-technology-for-delicate-surgery/
https://www.cnn.com/2015/04/02/health/surgery-scalpels-obsidian
https://abavistwellness.com/obsidian-scalpel-blade-vs-steel-scalpel-blade/