In the world of My Hero Academia, most of the planet’s population are born with Quirks, special abilities that grant them extraordinary powers. These range in usefulness from Momo’s Creation Quirk, which allows her to produce anything from her body so long as she understands how it works, to Tatami’s Telescopic Quirk, which lets her retract her body parts like a turtle. While they vary wildly, there’s one disturbing truth to how Quirks function, and it’s that with each generation, they get stronger, and that is what will eventually doom the planet.
The Quirk Singularity
The Singularity is the futurist theory that, at some point, technology will surpass humanity, leading to our extinction as a species. In the world of My Hero Academia, this is instead known as the Quirk Singularity. At some point, there will either be enough super-powered individuals that the planet is forever damaged or a quirk will be developed that is so strong that the user will accidentally bring about doomsday.
Quirks getting stronger with each generation has been mentioned in the anime a few times, notably in Season 4, Episode 16, “Win Those Kids Hearts” when Bakugo and Shoto face the challenge of dealing with a class of elementary school kids running wild. They may be young, but these students have Quirks and believe they are more powerful than the assembled UA and Shiketsu High School students.
The following episode, “Relief For Liscene Trainees,” is the first to mention the Quirk Singularity Doomsday theory, when Present Mic comments that the youngsters have more power than he did at their age. Quirks from parents combine in their children, gaining power in the process, which explains why the elementary school students surprised the high school students.
Origin Of The Quirk Doomsday Theory
Roughly 70 years before the start of My Hero Academia, Dr. Kyudai Garaki proposed the “Paranormal Singularity Theory,” later renamed as the “Quirk Singularity Doomsday Theory.” At the time, no one took him seriously, ostracizing the doctor from society with one very important exception: All for One. Desiring a way for his body to adapt to all of the Quirks he was stealing, All for One supported Dr. Garaki, and in return, he continued researching the evolution of Quirks.
By the time the fourth generation of Quirks arrived, the general public had come around and started to accept the Quirk Singularity Doomsday Theory, but even then, it was quickly brushed off and is now considered a fringe belief. An example of this belief is Humarise, the cult at the center of the problems in My Hero Academia: World Heroes’ Mission, which has a fanatical anti-Quirk belief system.
Founded by Flect Turn, a man obsessed with the Quirk Singularity Doomsday Theory after he was unable to control his Reflect Quirk, Humarise was focused on eliminating everyone with a Quirk. That works out to roughly 85% of the world’s population. An attempt to use hidden Trigger Bombs designed to kill anyone with a Quirk but leave the Quirk-less unharmed was foiled by Deku, Bakugo, and Shoto.
The Quirk Doomsday Theory Is Proven To Be True
Quirks can undergo “Quirk Awakenings,” which dramatically increase the user’s power level and usually come about when it’s a life-or-death situation. For example, Ochako gained the ability to levitate anything already impacted by her quirk, removing the limitation of physically touching it first. Using this, she wiped out her rival, Himiko Toga’s massive clone army, in an awe-inspiring attack.
Tomura Shigaraki is one of the best villains in My Hero Academia, and when his Decay Quirk was awakened, he became the second most dangerous villain behind All For One. Not only could his Quirk wipe out entire cities, but his exponentially increased power level made him a deadly threat to anyone who had to touch the ground. So far, no quirk has done a better job of demonstrating the impending Quirk Singularity than Shigaraki’s, forcing the entire country of Japan to go into lockdown.
Shigaraki in the manga has become even more powerful, proving that Dr. Kyuda Garaki’s theory about the Quirk Singularity is true. The implication is that even if Deku and the assembled heroes can eventually defeat Shigaraki and All For One, a new Quirk will emerge in just a few more generations that can cause an extinction-level event. No matter who wins the Final Battle arc, the planet in My Hero Academia is doomed.