Stuff like "brain in a vat" is exactly why I dismiss most philosophy. Where is the reference to that possibility in the lecture that was posted here? If we (or one of us) is just a brain in a vat, surely it would have a lot of implications for the value of life?
I think "brain in a vat" only makes a stronger case for mathematics. After all, in the end what else but information and it's transformation matters? Everything else can be stripped away. And stuck with pure information, I think we are talking maths.
Yes, as probably becomes evident from my other posts, I am just disappointed by the shallowness of most philosophy out there. In the sense that I consider mathematics to be philosophy, of course I accept it. I just don't like that almost all non-mathematical philosophy texts I have encountered start from invalid assumptions.
I think "brain in a vat" only makes a stronger case for mathematics. After all, in the end what else but information and it's transformation matters? Everything else can be stripped away. And stuck with pure information, I think we are talking maths.