P1. The experience of free will is no more than an appearance.
P2. If the experience of free will is no more than an appearance, then people don't really have free will.
C1. So, people don't really have free will.
P1. If a choice is free, then it is not caused.
P2. If a choice is not caused, then it is a random occurrence.
P3. But, if a choice is free, then it is not a random occurrence.
C1. So, if a choice is free, then it is both a random occurrence and not a random occurrence, which is impossible.
C2. So, no choice can be free.
P1. Whatever future events will happen, it is now true that these future events will happen as they do. (E.g., if I will in fact sing tomorrow, then it is true, and it is true now, that I will sing tomorrow.)
P2. If it is now true that these future events will happen as they do, then it is now not possible for anyone to bring it about that any of these future events will not happen. (E.g., if it is now true that I will sing tomorrow, then it is now not possible for me to bring it about that I will not sing tomorrow.)
P3. If it is now not possible for anyone to bring it about that any of these future events will not happen, then people are not free with respect to any future events.
C1. So, people are not free with respect to any future events.
P1. Computers can perform every task that people can perform.
P2. Computers do not have free will.
C1. So, no task that people can perform requires that people have free will.
P3. If no human activity requires free will, then we have no reason to believe that people have free will.
P4. If we have no reason to believe that people have free will, then we should not believe that people have free will.
C2. So, we should not believe that people have free will.
P1. Things made only of matter can only have actions that are caused.
P2. Things that can only have actions that are caused do not have free will.
C1. So, things made only of matter do not have free will.
C2. So, if people are made only of matter, then people do not have free will.
P1. The entire human body (including the brain) is made up of cells each of which has no freedom of choice.
P2. If the entire human body (including the brain) is made up of cells each of which has no freedom of choice, then a human being cannot have freedom of choice.
C1. So, a human being cannot have freedom of choice.