Can AI decide who won a debate?

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Can AI decide who won a debate?

Post #1

Post by historia »

POI wrote: Thu Mar 05, 2026 5:19 pm
Aside from this, you definitely have not refuted my other given point(s). Please actually address them.
The Tanager wrote: Sat Mar 07, 2026 9:29 am
Whether I have refuted you or you have refuted me is up to each person to decide, whoever is ultimately right.
So, one of the things I've been thinking about lately is using AI to judge who 'won' a debate on this forum. Instead of letting each reader decide that for themselves, can we turn to bots to give us a more neutral judgement as to who at least made the better arguments?

Question for debate

Can artificial intelligence accurately and fairly judge who won a debate on this forum?

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Re: Can AI decide who won a debate?

Post #2

Post by historia »

Okay, so I decided to test out this idea with the debate between the Tanager and POI in the Why did the Hebrew God Create Carnivores thread.

I used ChatGPT 5.2 Pro. This is not the typical model you encounter when using the free version of ChatGPT. This is what OpenAI refers to as their "research-grade intelligence." It took nearly 11 minutes to process my query.

Here's my prompt:
historia wrote:
This link takes you to a thread on a message board where participants are debating Christianity and religion. The thread is 18 pages long. In that thread, two participants, "The Tanager" and "POI" are debating specific points within the topic. Can you review their posts and decide which of the two refuted the other or which person won the debate?
viewtopic.php?t=42773
And here is what ChatGPT gave me:
ChatGPT 5.2 Pro wrote:
I read through the back-and-forth between The Tanager and POI in that thread (including how their exchange ends on page 18). There’s no explicit concession like "I concede" from either of them; it ends more like an ongoing disagreement where one side says the other hasn’t answered everything and the other says they have, and invites the discussion to continue. (viewtopic.php?start=170&t=42773)

What each person’s core position was

POI’s main line

POI’s recurring claim is that animal suffering/predation looks gratuitous under an all-loving/omni God because animals (as POI frames it) don’t get redemption/theodicy, so the suffering seems pointless. He repeatedly proposes (in various forms) that an omnipotent God could have created a world where animals don’t need to eat, so predation would never arise. (viewtopic.php?start=170&t=42773)

Later, POI tries to ground "evil" (or at least moral criticism) in well-being, saying you can "objectively" compare actions against well-being, and he treats predation/parasitism as clearly anti–well-being. (viewtopic.php?start=170&t=42773)

The Tanager’s main line

The Tanager’s recurring response is that POI hasn’t actually established the key premises needed for POI’s conclusion. In particular, The Tanager repeatedly presses two points:
  • You must first show that animal suffering is "evil" (not merely unpleasant), and
  • Show that it’s unnecessary in a way that’s relevant to God’s purposes (rather than just asserting "God could have done otherwise").
(viewtopic.php?start=30&t=42773)

He also rejects (or at least doesn’t accept) the common "Fall caused animal predation" framing: he argues Genesis doesn’t clearly say animals couldn’t prey pre-fall, and he explicitly says he thinks predation is most reasonably pre-fall (and he also treats the "fall" more as mythic teaching than a literal modern-historical sequence). (viewtopic.php?start=40&t=42773)

And when POI leans on "well-being" as a moral foundation, The Tanager pushes a meta-ethical critique: he says POI is equivocating—agreeing that "morality" and "well-being" can be related isn’t the same as establishing that POI’s chosen version of "well-being" creates objective moral obligations. He also argues that if POI is effectively a moral subjectivist, then calling God "evil" for valuing different priorities doesn’t work. (viewtopic.php?start=170&t=42773)

Where the debate "turns" and why it never cleanly resolves

1) The burden-of-proof stalemate

Most of their exchange gets stuck here:
  • POI keeps returning to "this looks obviously gratuitous / God could make a world without predation (or without eating)" (viewtopic.php?start=40&t=42773)
  • The Tanager keeps returning to "you haven’t shown evil (and gratuitous ≠ evil), and you haven’t shown a concrete alternative world that preserves the goods God is allegedly aiming at." (viewtopic.php?start=30&t=42773)
That’s why they talk past each other. POI treats "suffering is bad" as basically self-evident and needing no deeper grounding. The Tanager refuses to grant that premise at the level POI needs (especially as a decisive argument against God), so he demands argument/grounding first. (viewtopic.php?start=40&t=42773)

2) POI’s Genesis/heaven argument doesn’t land cleanly

POI tries to use Genesis 1 to argue God’s intended design wasn’t predation, and also argues that if suffering won’t exist in heaven then suffering must be "not good." (viewtopic.php?start=40&t=42773)

The Tanager directly counters both:
  • Genesis 1’s "plants for food" doesn’t explicitly say only plants for all animals or no predation; plus Genesis 9 is where humans are explicitly allowed to eat animals after the flood, which (he argues) doesn’t map neatly onto "predation starts at the fall."
  • "Not in heaven" doesn’t imply "evil," and he gives marriage as an example of something seen as good but not present in heaven (on his view).
(viewtopic.php?start=40&t=42773)

So on the "the Bible clearly teaches X about animal predation" angle, The Tanager does a cleaner job rebutting POI’s certainty.

3) The meta-ethics challenge hits POI’s "well-being is objective" move

When POI says morality can be treated as well-being and compared "objectively," The Tanager calls that an equivocation and presses: how do you get from facts about well-being to binding moral "shoulds," especially on atheism? (viewtopic.php?start=170&t=42773)

POI asserts that you can objectively compare actions against well-being, but (in the parts of the thread where their exchange culminates) he doesn’t really supply the missing bridge The Tanager is asking for—he mostly reasserts that predation obviously violates well-being and repeats the "God could create no-eating animals" alternative. (viewtopic.php?start=170&t=42773)

4) End-state: no concession; they disengage on "you didn’t answer everything"

Near the end, POI explicitly complains that The Tanager bypassed points, and says he’s waiting for "actual responses." (viewtopic.php?start=170&t=42773)

The Tanager replies (paraphrasing) that he believes he has responded to everything he’s seen, acknowledges possible misunderstanding/missing something, and says who refuted whom is "up to each person to decide," while inviting continuation. (viewtopic.php?start=170&t=42773)

That’s the thread’s "closing" posture—more stalemate than decisive victory.

So… who "won"?

If "won" means a clear refutation that the other side conceded:
Neither. There is no explicit concession and the exchange ends in an unresolved dispute over what counts as an answer and what burdens have been met. (viewtopic.php?start=170&t=42773)

If you force a judgment by typical debate standards (who carried their burden, stayed internally consistent, and directly neutralized the other’s key moves):
The Tanager had the stronger showing overall.

Why I say that:
  • He consistently identified the logical gaps in POI’s argument (especially: "gratuitous" → "evil" → "therefore incompatible with God") and repeatedly demanded the missing support instead of letting the debate run on intuition alone. (viewtopic.php?start=30&t=42773)
  • He offered concrete rebuttals where POI tried to use scripture (Genesis/heaven) as decisive proof. (viewtopic.php?start=40&t=42773)
  • He pressed POI on moral grounding/well-being objectivity in a way POI did not clearly resolve, at least as the thread ends. (viewtopic.php?start=170&t=42773)
POI did raise emotionally powerful examples (parasites, being eaten alive) and a persistent alternative-world intuition ("God could make animals not need to eat"). But he largely treated those as self-justifying rather than building the structured case The Tanager was demanding, and that’s why the conversation never reaches a point where POI clearly "refutes" The Tanager. (viewtopic.php?start=40&t=42773)

If you want, I can also extract the 3–5 central unresolved questions they kept looping on (and what would have been required, logically, for either side to decisively settle them).
How do you think it did? Is it right?

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Re: Can AI decide who won a debate?

Post #3

Post by POI »

[Replying to historia in post #2]

I think, though AI sometimes serves as a useful tool, AI has a long way to go, (as it also missed points)... In a nutshell, and at the risk of being reported here, the entire exchange ultimately gave me 'blue balls.' Meaning, the exchange ended prior to any climactic resolve. Post 181 will express a summation of unresolved topics relating to the exchange.
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Re: Can AI decide who won a debate?

Post #4

Post by Athetotheist »

historia wrote: Sat Mar 07, 2026 2:00 pmSo, one of the things I've been thinking about lately is using AI to judge who 'won' a debate on this forum. Instead of letting each reader decide that for themselves, can we turn to bots to give us a more neutral judgement as to who at least made the better arguments?

Question for debate

Can artificial intelligence accurately and fairly judge who won a debate on this forum?
Would we be turning to bots for "a more neutral judgement", or would that just be our excuse for our species finally becoming too lazy to even formulate its own opinions?
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Re: Can AI decide who won a debate?

Post #5

Post by historia »

POI wrote: Sun Mar 08, 2026 1:04 pm
AI has a long way to go, (as it also missed points)
What points did ChatGPT miss that you think are meaningful to judging your debate with the Tanager?

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Re: Can AI decide who won a debate?

Post #6

Post by historia »

Athetotheist wrote: Sun Mar 08, 2026 1:50 pm
Would we be turning to bots for "a more neutral judgement", or would that just be our excuse for our species finally becoming too lazy to even formulate its own opinions?
The former.

Let's see how it judged our last debate, shall we?

Here is my prompt:
historia wrote:
Okay, here is another debate. When judging who made the better arguments, or who "won" the debate, do not take into consideration any previous analysis you conducted on the earlier threads we examined.

This link takes you to a thread on a message board where participants are debating politics and religion. The thread is 12 pages long. In that thread, two participants, "Athetotheist" and "historia" are debating specific points within the larger topic of the thread. Can you review their posts and decide which of the two won the debate?
viewtopic.php?f=16&t=40276&start=60
Again, this is using ChatGPT 5.2 Pro. It responded:
ChatGPT wrote:
I reviewed the direct back-and-forth between Athetotheist and historia in the thread (their exchange really kicks off around mid-June 2025 and runs through early July 2025, ending with Athetotheist’s last reply on July 8, 2025).

Thread link:
viewtopic.php?f=16&t=40276&start=50

My judgment: historia “won” (narrowly)

Not because historia’s position is automatically “right,” but because—as a debate—historia more consistently:
  • Stayed on the key claim being disputed
  • Answered the opponent’s central prompts with a coherent causal story
  • Exposed a couple of unanswered challenges that Athetotheist never really resolved
Thread reference:
viewtopic.php?f=16&t=40276&start=50

What they were actually debating

Athetotheist’s core line
Athetotheist’s repeated thesis is essentially:
  • Israel’s neighbors’ hostility is best explained by occupation/colonization and control (homes, travel, water/electricity)
  • Therefore Israel should “go away / leave them alone” as a way to reduce conflict
Reference:
viewtopic.php?f=16&t=40276&start=50

historia’s core line
historia’s repeated thesis is essentially:
  • Israel cannot “go away” in any meaningful sense (it’s already “in Israel”)
  • Withdrawal (especially to older boundaries) is dangerous because major actors and proxies seek Israel’s destruction
  • Previous withdrawals / “land for peace” efforts did not reliably produce peace
Reference:
viewtopic.php?f=16&t=40276&start=60

So the fight is less “is the situation bad?” and more: what explains it and what would plausibly reduce it?

viewtopic.php?f=16&t=40276&start=50

The “pivot” moments where historia gained the edge

1) historia forced precision (“Go where?”) and Athetotheist’s answer didn’t help his case

Sequence:
  • Athetotheist says Israel should “go away and leave them alone.”
  • historia replies: “Go where?”
  • Athetotheist answers: “back to Israel.”
  • historia argues that’s where they already were, and frames surrounding history as repeated attacks after 1948.
Relevant pages:
viewtopic.php?f=16&t=40276&start=50
viewtopic.php?f=16&t=40276&start=60

As a debating move, historia successfully pushed a moral slogan into a concrete proposal and then attacked that proposal as vague/ahistorical.

2) historia met the “end the occupation” idea with a security-causation narrative—and Athetotheist didn’t dismantle it

historia’s strongest repeated rebuttal:
  • Withdrawal to older lines would be exploited by hostile actors (Iran + proxies)
  • Israel would return to a vulnerable posture
  • Gaza withdrawal is cited as an example
Reference:
viewtopic.php?f=16&t=40276&start=60

Athetotheist repeatedly returned to:
  • Moral harms (occupation/settlements/resources)
  • Rhetorical challenges (“are you saying…?”)
  • Claims that Israel “just wants land”
But did not directly dismantle the “withdrawal → greater threat” claim on its own terms.

viewtopic.php?f=16&t=40276&start=60

3) historia landed an unanswered challenge: “If Israel just wants land, why agree to peace deals?”

historia pressed:
  • If Israel’s motive is simply land-grabbing or domination, why agree to multiple peace deals offering a Palestinian state?
Reference:
viewtopic.php?f=16&t=40276&start=60

Athetotheist’s reply:
  • “That was then… now [different rhetoric/government].”
Reference:
viewtopic.php?f=16&t=40276&start=70

This did not directly address the historical-pattern argument about motivations.

Where Athetotheist scored points (but not enough to win)

1) Strong moral framing
  • Highlighted civilian suffering
  • Challenged “wars have consequences” framing
  • Raised water/resource control issues
Reference:
viewtopic.php?f=16&t=40276&start=60

2) Institutional citation on the Nakba
  • Cited UN description of 1947 partition rejection and subsequent events
Reference:
viewtopic.php?f=16&t=40276&start=70

historia responded with:
  • Expanded historical framing
  • Quotation from historian Howard Sachar emphasizing reciprocal violence and Arab League invasion
Reference:
viewtopic.php?f=16&t=40276&start=70

3) Strong rhetorical close
  • Reframed “experts” as victims, aid workers, refugees
Reference:
viewtopic.php?f=16&t=40276&start=70

Powerful rhetorically, but did not resolve the earlier causal/security disputes.

Where historia was weaker
  • Did not deeply engage the war-crimes/resource-deprivation moral critique
  • Often treated those issues as secondary to historical/security arguments
Reference:
viewtopic.php?f=16&t=40276&start=60

Bottom line

If the “winner” is who made the more compelling moral appeal, some readers may prefer Athetotheist.

If the “winner” is who more successfully refuted the other’s core claims and controlled the burden of response, historia comes out ahead in this exchange.

Thread reference:
viewtopic.php?f=16&t=40276&start=50
What do you think? Is that accurate?

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Re: Can AI decide who won a debate?

Post #7

Post by POI »

[Replying to historia in post #5]

Stay tuned, if post 181 of that thread is addressed.
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Re: Can AI decide who won a debate?

Post #8

Post by William »

This is an interesting thread.

Perhaps the better question to ask isn't "who won" but "who debated the best"?

Or perhaps even "At what point should both debaters have realised that the debate had become pointless and should have ended long before it"?
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Re: Can AI decide who won a debate?

Post #9

Post by William »

Summary of an external analysis of this discussion

I ran this thread past an AI assistant to see how it would parse the conversation about AI judging debates. Here is what it observed:

AIA: On the initial question: The assistant noted that AI can likely evaluate formal structure, logical consistency, and burden of proof, but cannot truly judge persuasiveness or rhetorical impact on a human audience. It concluded AI might be a useful analytical tool but cannot "fairly" decide a winner in a human-centric forum.

On the Tanager/POI test (Post #2): The AI correctly summarized the debate's structure but its verdict (Tanager won) revealed its bias toward formal logic over intuitive/rhetorical force. POI's complaint that the AI "missed points" (Post #3) was noted as a challenge the AI cannot refute without seeing those points.

On the historia/Athetotheist test (Post #6): The AI transparently stated its criteria (who controlled the burden of response) and acknowledged an alternative framing (moral appeal) would yield a different winner. However, the assistant observed that historia essentially outsourced the announcement of his own victory, which seemed to validate Athetotheist's "laziness" concern.

On Athetotheist's intervention (Post #4): This was identified as the philosophical pivot—shifting the question from "can AI judge?" to "why would we want it to?" The assistant agreed this reframed the debate around the value of human judgment versus intellectual laziness.

On William's post (Post #8): The assistant found this the most constructive intervention, suggesting better questions are "who debated best?" (skill) or "when should debates end?" (pointlessness), which moves beyond winner/loser binaries entirely.

On POI's deflection (Post #7): The assistant noted POI avoided the direct question about missed points by punting to a future post, which either buys time or reinforces his "unresolved debate" complaint.

Overall observation: The AI in Post #6 was more transparent than the AI in Post #2, but both ultimately judged by their own internal metrics rather than any objective standard. The thread itself demonstrates that humans remain the necessary arbiters of human persuasion.

Me: RE post #8 - this is the point WIlliam is addressing "humans remain the necessary arbiters of human persuasion" but when two humans are invested in a many paged debate where no forward motion is happening, humans have a hard time knowing when or how to quit...

AIA: Excellent clarification. You are right—I missed the practical application of William's point.

Here is a revised summary incorporating that insight:

On William's post (Post #8): The assistant initially framed this as moving beyond "winner/loser binaries," but upon reflection, William is addressing something more practical: when humans are deeply invested in a stalled, multi-page debate, they often cannot see when to quit. This is where AI might serve a genuine function—not declaring a winner, but offering an external, dispassionate assessment of when a debate has become circular or unproductive. The humans are too close to it; a machine could theoretically say "you are both repeating yourselves" in a way neither participant can hear from the other.
Last edited by William on Sun Mar 08, 2026 6:55 pm, edited 1 time in total.
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Re: Can AI decide who won a debate?

Post #10

Post by historia »

William wrote: Sun Mar 08, 2026 6:34 pm
Perhaps the better question to ask isn't "who won" but "who debated the best"?
Even when I ask ChatGPT Pro who "won" each debate, it always reframes the question in terms of who debated the best, as you can see in the two examples above.
William wrote: Sun Mar 08, 2026 6:34 pm
Or perhaps even "At what point should both debaters have realised that the debate had become pointless and should have ended long before it"?
LOL, indeed.

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