The parent's point was that graphene was harmless because graphite is widely used. Graphite is just a lot of graphene layers stacked on top of each other. Prett

The parent's point was that graphene was harmless because graphite is widely used. Graphite is just a lot of graphene layers stacked on top of each other. Pretty much no dangerous particles are emitted during normal use of a pencil, which was part of the point.