whowhowho comments on The Level Above Mine - Less Wrong

42 Post author: Eliezer_Yudkowsky 26 September 2008 09:18AM

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Comment author: whowhowho 21 March 2013 09:18:28AM *  -1 points [-]

But they are still laws of physics,

Microphysical laws map microphysical states to other microphysical states.Top-down causation maps macrophysical states to microphysical states.

Such laws are still fundamental laws, on the lowest level of the universe.

In the sense that they are irreducible, yes. In the sense that they are concerned only with microphyics, no.

Ergo, a reductionistic universe is also deterministic from a probabilistic standpoint, i.e. the lowest level properties and laws can tell you exactly what to anticipate, and with how much subjective probability.

"Deterministic" typically means that an unbounded agent will achieve probabilities of 1.0.

Comment author: JohnWittle 21 March 2013 09:45:06AM 0 points [-]

Top-down causation maps macrophysical states to microphysical states

Can you name any examples of such a phenomenon?

"Deterministic" typically means that an unbounded agent will achieve probabilities of 1.0.

Oh, well in that case quantum physics throws determinism out the window for sure. I still think there's something to be said for correctly assigning subjective probabilities to your anticipations such that 100% of the time you think something will happen with a 50% chance, it happens half the time, i.e. you are correctly calibrated.

An unbounded agent in our universe would be able to achieve such absolutely correct calibration; that's all I meant to imply.