From a textbook left in our era by a child on a time-traveling field trip (he was born in the year 3003 ce)

…This prominent hominid ancestral species, self-styled ‘humanity’ or ‘homo sapiens’, was somewhat successful in terms of mechanical construction of civilizations, and notable for occasional bursts of artistic creativity. Nonetheless, its tragic flaws brought about the destructive Anthropocene and a collapse of its fragile social systems and infrastructure. Essentially ‘homo sapiens’ was neurologically boxed-in by a crude cerebral system alternating reward and negative input, inevitably producing addictive and desperate behavior, complicated by wired-in xenophobic pathways cascading to the collapse of its feeble capability for empathy and self awareness. This self-numbing, self-destructive complex was egregiously magnified by the dominant media systems of the time…Our currently dominant mutation, humanitas quartus dimensio, optimized 3rd and 4th dimensions of cognitive self-awareness, enabling objectivity interlaced by empathy…And so HQD emerged from the ruins of the anthropocene and cultivated a new, diverse planetary biome and, thus far, a sustainable civilization…

–from, The Child’s Book of Human Developmental History, circa 3010 CE [translated from the period’s dominant philological form]