One of Lepore's interests is flint knapping, or creating tools out of stone as was done during the Paleolithic era. At one point, he created a scalpel out of obsidian, which is glass from a volcano. He used it on some patients with their permission, but was forced to discontinue the use when it was discovered that the method of sterilization that was being used for the scalpel, a gas called ethylene oxide, could be harmful to people.

A group participates in a nature walk on Nantucket
Ben Garvin