That is, they think all of their decisions were preordained, and then use this to claim that they can’t be held responsible for anything they do.
Let’s say you see someone playing in traffic, and tell them they shouldn’t be doing that. They respond, “I can’t not do it, because my brain already made the decision to do it, so I have no choice but to do it.”
Is this person correct? Or do they have the ability to just follow your advice and stop playing? Do they have the ability to ignore your advice and keep playing? If they have the ability to do both, then to what degree can we say that your advice is determining their choice? How can we say that choice is determined if we can also say that they should make a different choice?
We are constantly making and updating our choices in response to new information. Just because the brain decided upon one course of action at one point in time does not preclude it from changing course in the future. That’s just a new choice. All available information is taken into consideration at all points in time.
If our brain can make these choices, then how can we say it is determined to make a specific choice?
By determined, I mean it follows a logical set of rules, not that it is set on a specific action. The idea would be that it was determined to make all those choices because everything else is also following the rules of the universe. Just as it was determined that they play in traffic, so was it determined for me to tell them to stop, just as it was determined for them to listen. They didn’t choose to change their mind, they were always going to change their mind.