Humams are also an invasive species out of its original ecological niche. They were supposed to stay in Africa with the hyenas, cocodriles and lions keeping them in check.

I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.

Frank Herbert, Dune

Now, what's the difference between an invisible, incorporeal, floating dragon who spits heatless fire and no dragon at all? If there's no way to disprove my contention, no conceivable experiment that would count against it, what does it mean to say that my dragon exists? Your inability to invalidate my hypothesis is not at all the same thing as proving it true. Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value they may have in inspiring us or in exciting our sense of wonder. What I'm asking you to do comes down to believing, in the absence of evidence, on my say-so.

Carl Sagan, The Demon-Haunted World

The essence of the independent mind lies not in what it thinks, but in how it thinks.

Christopher Hitchens, Letters to a Young Contrarian

Reminds me of the time I couldn't get my code to compile due to invisible unicode characters in the code I copy-pasted from the web.

Dramasystem?

Die, die, die my darling

Everyday is exactly the same

This is probably about the FSR3 presentation https://youtu.be/zttHxmKFpm4?si=OyZOmoX22MQJDOst

pi equals 10

Who the fuck believes anything Maussan says?

That's how they got after copy-pasting them. Fixed.

Flatpak

Flatpack: Fix the Future is the first game in the smash Hyperoptimistic Postapocalyptic genre of gaming. Flatpack is a game about building a new society using pre-apocalypse technology that you don't always trust or understand, and solving terrible problems creatively. 

Wicked ones

Hillfolk/Dramasystem and Cortex in it's Drama implementation are the best I know of for heavy social games.

Maybe a modified twilight 2000 or Mutant Year Zero? It depends on how grim or heroic he wants the game to be.

My guess is he wants a steampunk setting with survival and base building mechanics.

Hyperborea if you like a AD&D style game.

Worlds without Number is similar, slightly more modern system.

The out of print modiphius 2d20 Conan could also interest you.

The Tiny d6 system has several ruleset for different genres and it's pretty easy to pick up.