Ecuryek-yuh-ree

n. A conversation that spans huge intervals of time, kept alive by contributors who casually overlay their thoughts as if no time had passed, which effectively compresses it all into a poignant temporal mash--an online thread that waits years between replies, a constitution being amended by successive generations, or a cave painting fleshed out in sessions ten thousand years apart, by artists who might each have been using the same discarded piece of charcoal.