Physical CDT has a constructible form; FDT has none — an asymmetry
jessi_cata · x · 2026-11-10
A reply to OrionJohnston's decision-theory thread. The author argues that under this framing, "physical CDT" is closer to the mainstream version and has a specific constructible form — e.g. hooking a quantum RNG up to an RL exploration algorithm to "make decisions using quantum randomness".
This exposes an asymmetry with FDT: a constructive form has been proposed for physical CDT, but no corresponding constructive form exists for FDT. EDT falls somewhere in the middle in how easy it is to determine what it recommends.
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