Can’t resist linking to this bit of neuroscience.
The brief version – research shows that sometimes our brains make actual decisions before we have made, or could possibly make, a conscious choice. Nevertheless “the system” is able to retrospectively fool us that we have made a conscious choice.
It is believed that this “fooling” process is evolved – that our ability to believe we are in control and making choices (even when we are not) stops us from falling into despair and spending our whole lives on our futile bums.
It is an uncomfortable truth. As much as anything else, we may be less accountable than we think.