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Why AI sounds right even when it’s wrong

Posted on:December 15, 2025 at 11:15 PM

AI sounds right — even when it’s wrong — because it is optimized for fluent, high‑probability language, and our human brains are wired to assimilate fluency and confidence as correctness.

That sentence alone explains about 80% of the weird, uncomfortable moments people are now having with AI.

Moments like:

  • This answer sounds amazing; but something feels off.
  • I trusted it because it explained it so clearly.
  • I didn’t even think to double‑check — it felt done.
  • It said the mushroom was edible...

This article will —hopefully— help you prevent moments like these.

Let’s set the two main guiding principles we are exploring

  • AI is not malicious.
  • and Humans are not —necessarily— careless.

The interaction between how we humans “understand” and how LLMs are programmed to answer is what’s largely in question here. Let’s call this effect The satisfying answer trap.

And once you see it, you will not be able to unsee it. So, buckle up!

The short version

Think of your GPT of choice as that-one-friend who always agrees with you; no matter how nonsensical you are being.

  • Recognize that AI is not optimized for truth. It is optimized for what sounds right next. And not only this, but in a lot of cases, what sounds right for you based on the conversation.
  • We humans do not fact check —ask any politician—. We are biased towardswhat feels right.

Put those two together and you get: Confident, fluent answers that trigger a sense of understanding — even when the content it is based on is incomplete, shallow, or flat‑out wrong.

That is the trap.

How LLMs actually generate answers

A large language model does not know things, not in any human way. It predicts the next set of words that best fits the previous sets of words. Again and again, and again. We talked about this in the article AI 102: AI is prediction, not intelligence. And how you can start using it Today!

As OpenAI puts it, language models are trained to produce responses that are statistically likely continuations, not verified statements of fact. They are guessing — very, very well — based on patterns in their training data, as explained in Why language models hallucinate.

This has three important consequences.

1. Fluency beats accuracy by default

If a sentence structure is common, clean, and confident in the training distribution, the model is rewarded for producing it. It matters not if it is true, that is a secondary concern unless you are explicit with the model, or provide it with tools to perform checks.

That is why an answer can sound polished, structured, and authoritative — and still be wrong.

2. Models never shut up

Most LLMs are not trained to say I don’t know. They are trained to answer.

As Markus Brinsa notes in Why AI models always answer — even when they shouldn’t, abstaining is rarely rewarded. Guessing often is.

So when the model lacks information, it fills in the gap. Not maliciously. Mechanically.

You can almost hear them sayin’

C’mon, This is what I do!

3. Hallucination is not a bug you can fully remove

Research increasingly suggests that hallucination is intrinsic to next‑token prediction systems. The arXiv paper LLMs will always hallucinate, and we need to live with this makes this point bluntly:

When every token has a non‑zero probability of error, confident falsehoods are not an edge case. They are a statistical inevitability.

Meaning: There is a chance –non-zero– that the LLM is going to make mistakes. And this is inevitable.

What is dangerous, is the fact that wrong answers are not random noise. They are coherent stories. They sound as real as snake-oil salesmen speeches.

Why wrong answers feel so right

Now let’s switch sides. Because the second half of this problem is not AI.

It is us.

Yes, we have said it before, while we humans are awesome, we are also flawed.

Fluency as a truth signal

Humans use mental shortcuts. One of the strongest is the fluency heuristic:

  • If something is easy to read
  • easy to follow
  • and neatly framed

We subconsciously rate it as more likely to be true.

This is why marketing copy works. Why confident speakers persuade. And why polished AI explanations feel reliable.

As described in The fluency fallacy: Why AI sounds right but thinks wrong, fluency is often mistaken for correctness — especially when we lack deep domain knowledge.

The illusion of explanatory depth

Here is the nastier bias.

The illusion of explanatory depth (IOED) is the tendency to believe we understand complex systems far better than we actually do.

You think you understand how a toilet works — until someone asks you to explain it step by step.

AI makes this worse.

Research summarized in The illusion of explanatory depth in AI shows that articulate explanations increase perceived understanding without improving actual understanding.

In other words:

A good explanation can make you feel smart without making you correct.

Confidence as authority

Tone matters more than we like to admit.

Carnegie Mellon research reported in AI chatbots remain confident — even when they’re wrong shows that authoritative language misleads users who rely on confidence as a proxy for expertise.

When you combine fluency, structure, and confidence, the brain relaxes. It stops checking.

The satisfying answer trap

This is where the trap opens, and we fall down:

  1. The model produces a fluent, confident explanation because its objective function —the programming— rewards this behavior.
  2. The human experiences clarity and closure: The that makes sense moment.
  3. That feeling is mistaken for understanding.
  4. Trust increases.
  5. Verification decreases.
  6. Future errors pass through unnoticed.

It is a vicious circle. Like shoots and ladders, but where every ladder takes to a shoot.

Bad alignment between how AI produces answers and how humans “understand” them. As Psychology Today puts it in The coherence trap: How AI is teaching us to feel truth, coherence feels like truth — even when it is just narrative consistency.

Why explanations can make things worse

You might think the solution is better explanations.

But beware, multiple studies show that AI explanations often increase overconfidence.

The paper AI explanations increase the illusion of explanatory depth demonstrates that users exposed to confident rationales feel more certain — even when the underlying decision is flawed.

This means explanation interfaces can act like persuasive essays, not truth‑checking tools. The more articulate the explanation, the deeper the trap.

This is not new — just faster

Humans hallucinate too.

  • We fill gaps.
  • Find hidden meanings where there is none.
  • Rationalize after the fact.

The arXiv paper I think, therefore I hallucinate draws direct parallels between human perception and machine hallucination: both are predictive systems trying to maintain a coherent world model under uncertainty.

The difference is speed and scale.

AI can generate thousands of confident explanations per minute. Humans cannot fact‑check that fast.

Practical ways to resist the trap

This is the part that matters.

  • You will not fix this by “being more careful.”
  • You fix it by changing the interaction patterns.

Force grounding

Whenever possible, tie AI output to something external:

  • Search results
  • Code execution
  • Databases
  • Primary sources

As outlined in What is LLM hallucination and how to prevent it, free‑form text without grounding is the highest‑risk mode.

If the model cannot point to evidence, treat the answer as a hypothesis — not a conclusion.

Reward “I don’t know”

Systems should explicitly reward abstention.

OpenAI notes that current evaluations often punish uncertainty and reward guessing, which trains models to sound confident even when unsure.

Silence is sometimes the most accurate answer.

Add cognitive friction

  • Do not just read explanations.
  • Apply them.

Ask:

  • Can you show me a counterexample?
  • Where would this break?
  • What assumptions are hidden here?

Forcing restatement or application punctures the illusion of depth.

Poke holes in the argument. You can ask GPT something like: Why is what you just wrote false, and how can you prove it is false or wrong?

Calibrate tone

Over‑confidence is a UI decision, not just a model property.

Interfaces that surface uncertainty, alternatives, or confidence ranges help users stay mentally engaged instead of slipping into passive trust.

As discussed in The dangerous confidence of AI, tone management is not cosmetic — it is safety infrastructure.

The real takeaway

  • AI is very good at sounding right.
  • Humans are very gullible good at believing things that sound right.
  • That does not make either evil.
  • But it does make blind trust irresponsible.

The future belongs to people who can use AI fluently without believing it blindly. Be like Bernadette — Re-write the vows.

Understanding the satisfying answer trap is step one.

Designing your workflows to escape it is step two.

I will catch you all in the next one

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