I think that after dozens of years of neuroscience we can determine whether a person is thinking or not by several means, all very different to 'introspection'.

I think that after dozens of years of neuroscience we can determine whether a person is thinking or not by several means, all very different to 'introspection'. Arguing about 'the illusion of thought' really sounds like medieval philosophy. I recommend 'I of the Vortex: From Neurons to Self' by Rodolfo Llinás for a more modern take on these issues.