Random thought of the day:<br><br>The first vertebrates, what we colloquially think of as complex life, appeared on earth roughly 500 million years ago.<br><br>The human agricultural revolution, and the beginning of what we think of as civilization, started roughly 10,000 years ago.<br><br>In other words, the entire span of human civilization could have occurred 50,000 times since complex life first appeared.<br><br>That's enough time for at least one flourishing civilization of intelligent non-human animals to have emerged, developed, peaked, collapsed, and disappeared. That's enough time for more than one.<br><br><a href="/tags/fiction/" rel="tag">#fiction</a> <a href="/tags/microfiction/" rel="tag">#microfiction</a> <a href="/tags/sciencefiction/" rel="tag">#ScienceFiction</a> <a href="/tags/thoughtoftheday/" rel="tag">#ThoughtOfTheDay</a><br>
Edited 1y ago