I don't understand how people use science to disprove freewill. Yes, our behaviours are heavily influenced by external factors. Yes, our decisions are made subconsciously before they are made conscious. But how does one go from this to supposedly disproving freewill?
If a person can't come up with a testable hypothesis for how freewill operates in the brain, then how can anyone conclude science has got to say anything about freewill?
Freewill is closely tide with our subjective experience, and that is qualitatively different to anything science can measure or observe.