What happens when you drop some hard science and socio-political facts in a discussion about the Fallout video game franchise?

You end up with an engaging and deeply sobering Ask Me Anything (AMA) session that will have you stockpiling food and other supplies faster than you can say Doomsday Preppers.

Reddit user teslasmash—a researcher and master’s degree candidate in international relations with a concentration in nuclear weapons strategy, history, and culture—recently held an AMA in the Fallout community in anticipation for the Nov. 10 release of Fallout 4 and talked about how aspects of the game’s post-nuclear holocaust setting would translate into our own world.

One of the most disturbing bits of information is just how easily a global climate collapse—what’s known as “nuclear winter”—could be generated by nations that aren’t among the world’s military superpowers.

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“Surely if the the U.S. and Russia throw down, it’s curtains for us all,” teslasmash wrote. “But what if India and Pakistan lose their cool? Is that enough to set off disastrous global cooling? It might be [PDF], and that’s a pretty scary thought.”

Here’s a look at some of the other nasty nuggets of nuclear knowledge uncovered during the AMA that make the nightmare world of the Fallout series seem safe and welcoming in comparison.

Would a Nuclear War be Survivable?

How Likely Is Nuclear Terrorism?

Was Chernobyl Worse Than a Nuclear Bomb?

What Parts of the Fallout World Ring the Truest?

Would Fallout‘s Vault Shelters Work in the Real World?

Why Don’t Nuke Tests Create a Nuclear Winter?

How Dangerous Is a Nuclear Country Like North Korea?

Would a Real Nuclear War Only Take Two Hours?

Is the “Doomsday Clock” Accurate?

What’s the Researcher’s Favorite Fallout Game?

Does He Have Pets?

Check out teslasmash’s complete AMA for more details about real-world nuclear doomsday and how it relates to the Fallout series.