Earlier quoted context omitted.
I don't know why you're quoting, or stressing, a word I didn't use. I once got into an argument with a date about the existence of God and the soul. She asked whether I really think we're "just" physical stuff. I told her, "no, I'm not saying we're 'just' physical stuff. I'm saying we're physical stuff." That 'just' is simply a statement of how she feels about the idea, not a criticism of what I was claiming. I don't…
“That’s all they do” and “just” are interchangeable. All you do is transferring electric charges across synapses, and all molecules do is bouncing off each other, but this reduction doesn’t explain neither thinking nor flying. In this case you’re saying “That’s all they do”, which means “just” to others. Don’t even try to argue, cause all I do is typing letters and you’ll only get more letters in response ;)
I disagree. Whereas “do” is a verb, “just”, as an adverb, implies an entirety of being, an essence. And a system is not solely its actions.