Long ago, in the before-times, people did this thing. It was sort of like texting, but involved the manipulation of this crude wooden stick to create letterforms. I think it was called ‘writting’ or something. In any case, the communication technology historians at Sharpie have discovered a new form of this archaic medium that hobbyists of ancient communication will get a kick out of. Dubbed the ‘Liquid Pencil’, the device is not so much an erasable pen as a non-erasable pencil. What’s the difference? Well, not much, but unlike previous forays into the exploration of the removability of ink,…