Does free will exist?
Two Astrophysicists Debate Free Will
A discussion between two astrophysicists exploring the existence of free will from physical, biological, and societal perspectives, considering determinism, stochastic uncertainty, and the implications of neuroscience and psychology.
The case is decided
It wasNeil deGrasse Tyson.
Neil deGrasse Tyson defended 7 of 8 claims, while Charles Liu defended 2 of 7. The balance of successfully defended claims across the debate favors Neil deGrasse Tyson.
Score panel — adjudicator
Crowd verdict
1 voteThe model called this for Neil deGrasse Tyson. Who do you say won?
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Receipts attached. The link opens at the deciding moment.
Neil deGrasse Tyson
Leaning towards the absence of free will for most human actions, based on scientific evidence from neuroscience, psychology, and physics, advocating for greater societal compassion.
- Claims raised8
- Defended7
- Refuted0
- Unanswered1
- Concessions1
- Fallacies (weighted)0.0
Charles Liu
Argues that while much of human behavior is determined, a small but significant portion of free will exists, particularly in shaping societal progress and compassion.
- Claims raised7
- Defended2
- Refuted0
- Unanswered2
- Concessions1
- Fallacies (weighted)0.0
Definitional alignment
When the same word means two different things, the entire exchange becomes contestable. Below: every term where the debaters did not agree on a definition.
- free willnot alignedNeil deGrasse Tyson
The ability to make choices that are not fully determined by antecedent causes, including physical laws, neurochemistry, and past experiences.
Charles LiuThe capacity to exercise agency in decision-making, particularly in moments where past experiences and training do not fully predetermine outcomes, and the ability to shape societal progress.
high
- determinismalignedNeil deGrasse Tyson
The principle that all events, including human actions, are ultimately determined by causes external to the will.
Charles LiuA framework where initial conditions and physical laws predetermine outcomes, but stochastic uncertainty and emergent complexity may allow for agency.
high
- stochastic uncertaintyalignedNeil deGrasse Tyson
Randomness inherent in physical systems that introduces unpredictability.
Charles LiuUnpredictable elements in the universe that may create opportunities for free will to emerge.
medium
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