Followup to: Possibility and Could-ness
Arthur Schopenhauer (1788-1860) said:
"A man can do as he wills, but not will as he wills."
For this fascinating sentence, I immediately saw two interpretations; and then, after some further thought, two more interpretations.
On the first interpretation, Schopenhauer forbids us to build circular causal models of human psychology. The explanation for someone's current will cannot be their current will - though it can include their past will.
On the second interpretation, the sentence says that alternate choices are not reachable - that we couldn't have taken other options even "if we had wanted to do so".
On the third interpretation, the sentence says that we cannot control our own desires - that we are the prisoners of our own passions, even when we struggle against them.
On the fourth interpretation, the sentence says that we cannot control our own desires, because our desires themselves will determine which desires we want, and so protect themselves.
I count two true interpretations and two false interpretations. How about you?
Caledonian: "It is much, much more elegant - and more compatible with what we know about cognition - to hold that the complex systems are built out of smaller, simpler systems over which the complex has no control."
The brain has feedback loops to even the earliest processing stages. Thus, I might choose to look for a lost contact lens. With that goal in mind, my unconscious visual processing systems will be primed to recognize signals that could be a contact lens. (The feedback loops can be observed in the neural tissue. There are cognitive science experiments that demonstrate that high level conscious decisions can affect neural processing in the earlier stages.)
The conscious mind may be a dim reflection of the top level computation that makes choices but it does reflect some of the processing that occurs. The conscious mind is aware of possible future outcomes and potential paths to preferred outcomes. The conscious mind isn't aware of the total brain mechanism that makes decisions, but it is aware of important pieces of that computation.