> I feel confident enough to disregard duelists
I'm a dualist, but I promise no to duel you :) We might just have some elementary disagreements, then. I feel like I'm pretty confident in my position, but I do know most philosophers generally aren't dualists (though there's been a resurgence since Chalmers).
> the brain is just (some form) of a neural net that produces output
We have no idea how our brain functions, so I think claiming it's "like X" or "like Y" is reaching.
Again, unless you are a dualist, we can put comfortable bounds on what the brain is. We know it's made from neurons linked together. We know it uses mediators and signals. We know it converts inputs to outputs. We know it can only be using deterministic and random processes.
We don't know the architecture or algorithms, but we know it abides by physics and through that know it also abides by computational theory.