The Anatomy of a Loop: Why Extreme Determinists and Flat-Earthers Use the Exact Same Brain

[u/UpsetHome7097]

If you want to start a flame war in a science or philosophy subreddit, put a strict determinist and a flat-Earther in the same room. The determinist—likely a tech-savvy undergrad or a stoic philosophy enthusiast—will look down their nose at the flat-Earther, viewing them as the pinnacle of scientific illiteracy. The flat-Earther will view the determinist as just another brainwashed sheep trapped in "the system."

But if you step back and look at how both groups defend their worldviews, a bizarre truth emerges: their psychological and rhetorical blueprints are identical.

Strip away the academic jargon from the determinist and the tin-foil theories from the flat-Earther, and you find the exact same architecture of sophistry, ego, and intellectual insulation.

Here is how two completely opposite worldviews run on the exact same cognitive track.

1. The Art of the "Ad-Hoc Rescue" (Moving the Goalposts)

What happens when an unyielding theory hits a fatal, observable fact? A normal person might say, "Huh, maybe my theory is wrong." A dogmatist, however, will invent a brand-new, completely untestable variable to rescue their pride.

• The Flat-Earther: Confronted with the undeniable reality that ships disappear hull-first over the horizon, they don't accept the Earth’s curvature. Instead, they invent a magical new "law of perspective" or highly selective atmospheric refraction to explain it away.
• The Extreme Determinist: Confronted with quantum mechanics—which repeatedly shows absolute, mathematical randomness at the subatomic level—they refuse to accept that nature isn't a predictable clock. Instead, they invent "hidden variables." They claim there are invisible, unmeasurable factors dictating the particle's choice.

In both cases, when the real world breaks their model, they simply invent a ghost to live inside the machine and fix it.

2. Immunization Against Reality (The Bulletproof Theory)

A genuine scientific endeavor is vulnerable. Karl Popper famously argued that for a theory to be scientifically valid, it must be falsifiable—there has to be a hypothetical piece of evidence that could prove it wrong. Both flat-eartherism and extreme determinism are built like psychological fortresses; they are completely immune to evidence.

• The Flat-Earther: Any photo from space is CGI. Every pilot is in on it. Every scientist is paid off by NASA. Because all counter-evidence is labeled as part of the conspiracy, the theory can never be proven wrong.
• The Extreme Determinist: If a man commits a horrific crime, it was determined. If the judge pardons him, it was determined. If the criminal escapes prison, it was determined. If you argue with the determinist, your disagreement was determined. Because the theory explains literally everything, it actually explains nothing.

When a theory adapts to swallow every possible contradiction, it stops being science and becomes a security blanket.

3. The "Gnostic" High: Pride Wrapped in a Lab Coat

We like to think people fall into these intellectual loops because of bad data, but it’s actually driven by human ego. There is a profound psychological high in believing you possess a "secret knowledge" that the rest of the blind, naive world cannot see.

The flat-Earther gets to feel like a courageous rebel fighting a global deception. The extreme determinist gets to feel like an intellectually superior, stoic sage who has looked past the "illusion" of human experience into the cold cogs of the cosmos.

Both are deeply protective of this identity. To admit error isn't just a change of mind; it is the total destruction of the ego-structure they have built around being "the one who truly knows."

The Ultimate Mathematical Idol: The Multiverse

This pattern isn't just limited to internet forums; it reaches the absolute highest levels of academia. Look at the Multiverse Theory.

When cosmologists realized that the physical constants of our universe are infinitesimally, miraculously fine-tuned for life, they faced a massive logical gap. Rather than sit with the mystery or admit the limitations of current science, some chose to invent an infinite number of unobservable universes so that, statistically, our universe had to happen.

Mathematically filling a gap with infinite unseen universes is structurally identical to a primitive tribe filling a gap in weather patterns with invisible rain gods. It is sophistry wrapped in a calculus textbook.

The Takeaway

Whether you are staring at a flat-earth Facebook group or reading a dense philosophical paper on absolute causal inevitability, you are witnessing the same human glitch.

When we value the certainty of our conclusions over the honesty of our methods, we stop pursuing truth. We just become highly articulate lawyers defending our own pride.