@tomr,
tomr wrote:By "reversing" the order of the natural numbers
So you think that there's a largest natural number? There isn't, that's exactly the point of infinity.
I'm not going to carry on addressing this stuff, it's just silly. If you claim that diagonalisation is logically invalid, then, because diagonalisation is valid in classical mathematics, you are committed to the rejection of classical mathematics. And, as science uses classical mathematics, you lose recourse to science. But even at this cost, all you have achieved is the denial of a single result. You have still not shown that willed actions would be impossible in a nondetermined world, obviously not, because by observation we perform willed actions, so, if willed actions were impossible in a nondetermined world, then the mere fact of us performing willed actions would establish that we live in a determined world. But there are many people, who are aware of the facts and the arguments, who think that we clearly do not live in a determined world.
So what have you achieved? By denying uncontroversially true statements, that freely willed actions are observable and that willed actions are possible in a nondetermined world, you have abandoned classical maths and essential principles of experimental science, you have left yourself without science. As commitment to denialism goes, that's pretty dedicated, it's probably further than most evolution deniers or global warming deniers go.