@steve-mcclair your Coke/Pepsi example sounds a lot like the 50/50 idea I mentioned in the original post. Incredible seemingly chaotic complexity and/or randomness may effectively be the same as non-choice. What I'm trying to tease out is where the "choice" comes from. There is some process in the brain that happens, specific neurons fire (or don't) which result in a "decision" which then leads to an action. The more we learn about these processes, the more accurately we'll be able to understand what we mean by "choice."