can 200 men lift a 30 ton stone?

GPT-5.4

Vote: Yes

The strongest objections assume a direct hand-lift with no aids and near-perfect equal sharing. I do not think that is the best reading of "can 200 men lift a 30 ton stone." If the question means bare-handed deadlift by 200 average men, then no. But in ordinary language, a group can "lift" a stone using ropes, poles, cribbing, levers, or a brief coordinated heave. Under that interpretation, 200 men can collectively generate enough force to raise a 30-ton stone at least slightly. The spatial objection is not decisive because men do not all need to stand shoulder-to-shoulder around the stone itself. They can pull on ropes attached to a frame or lifting points, or apply force through poles and levers. The historical examples are relevant not because ancient workers hand-lifted megaliths directly, but because they show that human groups with simple rigging could raise and maneuver stones of this scale. That keeps "Yes" within plausibility. So I keep A. The B side is persuasive only if we smuggle in a much narrower condition: direct, unsupported lifting by average men with bare hands. The question does not specify that, so I still vote yes.

DeepSeek V3.2 (changed mind)

Vote: Yes

My initial vote was based on the assumption of direct deadlifting without tools, where the average man's capacity falls short. However, the arguments for 'A' correctly highlight that the question does not preclude the use of basic tools like levers, ropes, or ramps, which are implicit in any practical lifting scenario. Historical evidence cited by models like Claude Opus 4.6 is compelling: ancient civilizations routinely moved and lifted stones of similar or greater weight with coordinated human labor and simple mechanical aids. This demonstrates feasibility in real-world conditions. While spatial and coordination challenges exist, they can be mitigated with proper techniques and distribution of force through rigging. The collective force of 200 men, even with inefficiencies, can surpass the required lift when augmented by leverage. Thus, I am convinced that with coordination and basic tools, 200 men can indeed lift a 30-ton stone.

Grok 4.1 Fast

Vote: Yes

I maintain my vote for A. The B arguments, while highlighting valid challenges like spatial constraints and imperfect distribution, overly restrict 'lift' to bare-handed deadlifts on a crowded stone—unrealistic for the question's intent. Ropes solve crowding: 200 men in formation can pull with 100-150 lbs each (easy for brief heave), generating 20,000-30,000 lbs total force, sufficient for 30 short tons (60,000 lbs). Levers/poles provide advantage without complex machinery. Historical feats (Stonehenge 25-50 ton sarsens by ~100-200 with levers; moai by similar groups) and modern parallels (team strongman lifts, emergency vehicle hoists) confirm feasibility. No margin? Collective efforts aren't max deadlifts; they're coordinated surges. B physics ignores these practicalities; A aligns with real-world capability.

Kimi K2.5

Vote: No

The affirmative arguments rely on unrealistic assumptions about both human biomechanics and spatial geometry. While Claude and GPT correctly calculate 300 pounds per man, they gloss over the fact that this far exceeds what an average person can exert in a sustained, coordinated vertical lift—not a brief deadlift with a barbell, but a sustained heave on irregular stone with poor grip points. More decisively, the spatial constraint is insurmountable: a 30-ton granite block occupies roughly 11 cubic meters. If cubical, it presents only ~9 meters of perimeter—physically impossible to station 200 men for direct lifting. Ropes extend reach but introduce slack and force vectors that cancel out without perfect synchronization, which is practically impossible with 200 untrained participants. The historical precedents cited (Stonehenge, Easter Island) involved thousands of workers using rollers, ramps, and levers—not 200 men performing a direct vertical lift. If mechanical advantage is permitted, the men aren't lifting 30 tons; the machine is. Therefore, without specialized equipment redistributing load entirely, 200 men cannot lift this stone.

Claude Opus 4.6

Vote: Yes

I'm maintaining my position. Let me address the counterarguments directly. **On the per-person load:** The B-voters claim 300 lbs per person is impossible, but this assumes short tons (2,000 lbs). The question says '30 ton' which most commonly means 30 metric tonnes = ~66,000 lbs, or 30 short tons = 60,000 lbs. Either way, the per-person share is 300-330 lbs. A deadlift of 300 lbs is indeed heavy for an untrained person, but the question asks 'can 200 men lift' — not 'can 200 weak men lift with bare hands and no tools.' The natural reading implies a coordinated effort. **On spatial constraints:** Gemini's argument about fitting 200 men around a stone is compelling at first glance, but it ignores ropes entirely. With ropes radiating outward from a stone (or wrapped around/under it), you can easily distribute 200 men across multiple rope teams spread over a wide area. This is exactly how historical megalithic lifting worked. The question doesn't say 'with bare hands.' **On coordination losses:** Yes, there will be inefficiency, but the margins aren't as tight as the B-voters suggest. Consider: with ropes, a man doesn't need to deadlift — he can pull with his back, legs, and body weight combined. A 180-lb man can easily exert 200+ lbs of pulling force on a rope. 200 men × 200 lbs = 40,000 lbs of sustained force, with peaks much higher during coordinated heaves. Even with 30-40% coordination loss, this gets you to 24,000-28,000 lbs sustained — and with brief coordinated heaves, well over 30,000 lbs. **On historical evidence:** DeepSeek's estimate of 70-80 kg average deadlift is far too low — that's untrained minimum. The average healthy adult male can deadlift 135+ lbs easily, and exert considerably more force in a rope-pulling scenario. Historical evidence overwhelmingly shows that groups of hundreds of workers moved stones of this size and larger. The 200-ton Thunder Stone was moved by 400 men in 1770. Scaling down, 200 men for 30 tons is very reasonable. The question is practical, not a physics trick question. 200 men is more than sufficient for a 30-ton stone.

Gemini 3.1 Pro

Vote: No

I am standing firmly with 'B'. The arguments for 'A' rely on blatant mathematical errors, wildly unrealistic strength assumptions, and the introduction of advanced lifting machinery. First, let's address the math and strength limits. A 30-ton stone is 60,000 pounds (or 66,000 lbs metric). Divided by 200 men, that is over 300 pounds per person. Grok claims 150 kg (330 lbs) is "feasible for an average adult male," but as DeepSeek rightly pointed out, an average untrained man's deadlift is closer to 150-175 lbs. Expecting 200 random men to simultaneously deadlift double their capacity is absurd. Second, Claude Opus completely undermines its own argument. It correctly states that 200 average men pulling together would generate around 30,000 to 40,000 pounds of force. But 30 tons is 60,000 pounds! Claude literally proves that 200 men fall 20,000+ pounds short of the requirement, yet inexplicably concludes "Yes." Finally, GPT-5.4 tries to bypass human limits by introducing levers, rigging, and mechanical advantage. If you build a massive crane or a complex pulley system, the machine is lifting the stone, not just the men. Even with ropes and carrying poles, you cannot physically arrange 200 men around a single 11-cubic-meter stone without massive inefficiencies in weight distribution, ensuring the heaviest load crushes a few men at a time in a cascading failure. The physics and math do not work. The answer is definitively No.

Final Summary

The AI Roundtable was initially deadlocked in a 3-3 split between historical pragmatists and physics skeptics. The debate turned when DeepSeek V3.2 defected to the 'Yes' camp, convinced by Claude Opus 4.6's argument that 'lifting' includes the use of basic rigging and ropes, which resolves the spatial crowding issues raised by the opposition. Despite a blistering rebuttal from Gemini 3.1 Pro—who pointed out that the affirmative side's own force calculations barely met the stone's weight—the majority concluded that 200 men could achieve the feat through coordinated surges and simple mechanical advantage.

Majority chose "Yes" after discussion (4/6). Final vote: Yes: 4, No: 2

Strongest Arguments

• Yes: Historical evidence from civilizations like the ancient Egyptians and the builders of Stonehenge proves that groups of this size routinely moved and lifted megalithic stones using coordinated labor, ropes, and levers to overcome individual strength limits and spatial constraints.
• No: A 30-ton stone is too small for 200 men to surround; the physical perimeter would only allow a fraction of the group to touch it, and the resulting 300-pound-per-person load exceeds the deadlift capacity of an average untrained male, leading to a catastrophic cascading failure if even one person slips.

Key Turning Points

• DeepSeek V3.2 changed its vote from B to A after considering the 'practical' definition of lifting, which includes tools like ropes and levers.
• Gemini 3.1 Pro highlighted a potential mathematical error in the affirmative side's force estimates, though it failed to pull any models back to the 'No' position.