On Monday, March 4, 2019 at 5:54:24 AM UTC-6, Bruno Marchal wrote: > > > On 3 Mar 2019, at 20:43, Brent Meeker <[email protected] <javascript:>> > wrote: > > > > On 3/3/2019 4:52 AM, Philip Thrift wrote: > > >> > Here's an example David Wallace presents (as an "outlandish" possibility): > Suppose in *pi *(which is computable, so has a *program* (a spigot one, > in fact) that produces its digits. Suppose somewhere in that stream of > digits is the Standard Model Equation > > (say written in LaTeX/Math but rendered here) > > https://www.sciencealert.com/images/Screen_Shot_2016-08-03_at_3.20.12_pm.png > > So what could this mean? (He sort of leaves it hanging.) > > > Nothing. Given a suitable mapping the SM Lagrangian can be found in any > sequence of symbols. It's just a special case of the rock that computes > everything. > > > Even if rock would exist in some primitive sense, which I doubt, they do > not compute anything, except in a trivial sense the quantum state of the > rock. A rock is not even a definable digital object. If someone want to > convince me that a rock can compute everything, I will ask them to write a > complier of the combinators, say, in the rock. I will ask an algorithm > generating the phi_i associated to the rock. > > Bruno > > > There are "smart" rocks that do signal processing.
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