Exclusive | Inside the secret world of the AI apocalypse doomsday preppers

Despite his shoebox Manhattan apartment, FDNY firefighter Jason Charles has somehow squeezed in $10,000 worth of doomsday supplies — enough to survive hurricanes, devastating floods, a second pandemic and, if things really go off the rails, the end of the world.Charles has never actually experienced a life-altering catastrophe.But that hasn’t stopped him from preparing for one.

Thirteen years ago, after reading William Forstchen’s “One Second After,” a novel about a post-apocalyptic America, he decided the apocalypse was probably worth preparing for.Now, Charles is ready for just about anything.Well, almost anything.“Those are things that you just hope don’t happen because there is no preparing for it.

You know, being sucked into a black hole, we’re all pretty much dead,” he told The Post.His preparedness has even made its way to YouTube, where he runs a channel devoted to doomsday prepping for other New Yorkers, recently posting a video in which he called AI’s threat to humanity “the most asinine thing going on right now.”“We’re developing a God AI that is undoubtedly going to destroy humanity and the entire world,” he said in the video. Still, Charles is preparing for the worst. He’s made the most of every inch of his apartment, adding shelves and filling closets — and eventually renting a storage unit — to accommodate a year’s worth of supplies, from freeze-dried food to a water jug and a solar power generator.If and when doomsday comes, Charles will have handheld radios to help him communicate with others.If cell phone signals are still up, he said he will try to text whoever he can — and hope for the best.

As for the rest of his apocalypse stash, he’s keeping that under wraps.“If you’re serious about prepping, you’re gonna make room for the food that you need and not the crap that you can’t use during the apocalypse,” he pointed out.Across the country, preppers like Charles are bracing for an ever-expandi...