Or the model in the designer’s head is pointed to, and some sort of contagion invoked to attribute it to the thing he designed. No, this is butter spread over too much bread. That is not what is called a model anywhere on OB or LW except in these comment threads; it is not what is called a model, period.
It is not about contagion. The point is, the reason that a particular control system even exists, as a opposed to a less effective control system or no control system at all, is that a process that implements some level of rationality produced it. The fact that a control system only needs the cached results of past rationality, and does not even have the capacity to execute additional rationality, does not change the fact that rationality plays a role in its effectiveness.
Semantics check: I assert that evidence accumulation does not imply some (non-zero) level of rationality. Ex gratia, evolution by natural selection accumulates evidence without any rationality. Does my word use accord with yours?
I think of the process of rationality as using evidence to (on average) improve behavior in the sense of using behaviors that produce better results. Evolution is a strange example, in that this process of improvement is not deliberative. It has no model, even metaphorically, that is deeper than “this gene contributes to genetic fitness”. It is incapable of processing any evidence other than the actual level of reproductive success of a genetic organism, and even then it only manages to update gene frequencies in the right direction, not nearly the rationally optimal amount (or even as close as deliberative human rationality gets). It is this small improvement in response to evidence that I consider rational (at a very low level). The fact that we can trace the causal steps of the evidence (reproductive fitness) to the improvement at a deep physical level matters only as much as the fact that in principle we could do the same with the causal steps of evidence I observe influencing the neurons in my brain which implements my rationality.
That’s a question with a complicated answer, but for the purposes of distinguishing what natural selection does from Cyan::rationality, it involves actions that are planned with an eye to constraining the future.
It is not about contagion. The point is, the reason that a particular control system even exists, as a opposed to a less effective control system or no control system at all, is that a process that implements some level of rationality produced it. The fact that a control system only needs the cached results of past rationality, and does not even have the capacity to execute additional rationality, does not change the fact that rationality plays a role in its effectiveness.
Semantics check: I assert that evidence accumulation does not imply some (non-zero) level of rationality. Ex gratia, evolution by natural selection accumulates evidence without any rationality. Does my word use accord with yours?
I think of the process of rationality as using evidence to (on average) improve behavior in the sense of using behaviors that produce better results. Evolution is a strange example, in that this process of improvement is not deliberative. It has no model, even metaphorically, that is deeper than “this gene contributes to genetic fitness”. It is incapable of processing any evidence other than the actual level of reproductive success of a genetic organism, and even then it only manages to update gene frequencies in the right direction, not nearly the rationally optimal amount (or even as close as deliberative human rationality gets). It is this small improvement in response to evidence that I consider rational (at a very low level). The fact that we can trace the causal steps of the evidence (reproductive fitness) to the improvement at a deep physical level matters only as much as the fact that in principle we could do the same with the causal steps of evidence I observe influencing the neurons in my brain which implements my rationality.
...so that’s a “no,” then? (I don’t think we disagree about what is actually (thought to be) happening, only on the words we’d use to describe it.)
That is correct. We are using the word differently. What do you mean by “rationality”?
That’s a question with a complicated answer, but for the purposes of distinguishing what natural selection does from Cyan::rationality, it involves actions that are planned with an eye to constraining the future.