Humans love a good apocalypse. Give us a blockbuster about a virus that obliterates the population, an asteroid that wipes out the entire planet, or anything with aliens and we lap it up. But have you ever thought about what will actually kill us at the finish line? Sure, we’d like to think the zombie apocalypse will be the winner, but if we’re talking about plausible ways to exterminate humanity, what’s a good way to go?


The end of the world as we know it isn’t all fiction. Life on Earth has come pretty close to getting wiped out a few times actually. Genetic analysis shows humanity plummeted to perilously low numbers—about 1,200 breeding humans (yes, we are all related)—when intense volcanic activity in Siberia caused global warming and wiped out 96% of plants and animals. 


Another wild time to be alive was when intense glacial and interglacial periods created large sea-level swings and moved shorelines dramatically. The tectonic uplift of the Appalachian mountains created lots of weathering, sequestration of CO2, and with it, changes in climate and ocean chemistry. That wiped out 86% of living things.


And for all those gardeners out there, be wary. At one point long before humans were around, the rapid growth and diversification of land plants (AKA weeds) generated severe global cooling. This killed 75% of species on Earth. 


But life persisted. We might be inbred, but it seems total annihilation is harder to pull off than you think. The asteroid that wiped out the dinosaurs 65 million years ago didn’t completely destroy the earth, and humans managed to scrape through the black plague. So what could be our final end?


Nick Bostrom, a philosopher who's done a bunch of work on apocalyptic events, classified four types of apocalypse: Bangs, crunches, shrieks and whimpers. Very sciency. 


Bangs are the sudden disasters like asteroids, volcanoes or a colossal tidal wave -  those Hollywood blockbusters we can’t get enough of. Crunches are when human life continues in some form but it’s horrible and nothing gets any better. If the idea of a crunch hasn’t made you depressed enough, watch The Road. Trust us, you don’t want the crunch. 


Shrieks allow for some form of post-humanity but there’s an extremely narrow band of existence. A chosen few go on to become elite and powerful but there are vastly fewer of us. Think living in a TV series like The Peripheral and Altered Carbon - we don’t love it. 


Then there are whimpers, where a post-human civilization arises but life gradually, irrevocably, evolves into a state where everything we value disappears. Civilization as we know it no longer exists. It could be horrible, or it could be interesting like the recently released show Fallout.


Life on Earth has weathered volcanoes, asteroids and drastic climate change and made it out the other side. Could nuclear war be our final end? Or what about a geoengineering backfire where some billionaire blocks too much of the sun? Oops, slight miscalculation! 


Of course, there’s the pretty legitimate threat of AI, robots getting way too powerful and taking over, or being way too dumb and making stupid decisions about nuclear bombs and whatnot. Speaking of technology, what if there wasn’t any? A large electromagnetic pulse or solar flare could literally take out all of the computer chips in the world. The impact of that would be catastrophic, to say the least. 


It’s fun to think about the bangs and crunches, but according to Ethan Mollick, Associate Professor at the University of Pennsylvania, what’s likely to happen is the boring apocalypse. No one single cataclysmic event, but merely a series of smaller, cumulative disasters like climate change, resource depletion and geopolitical instability - kinda like what’s happening right now (gulp). 


But if an apocalypse has to happen, we want the interesting kind where we re-imagine ourselves. The whimper sounds like the best pick of the bunch.

 
 
 
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