What is the essence of free will? We have a belief that when we make a choice, what we choose has a high degree of probability of happening. Can we build a formal physical and mathematical model that capture this? In his talk at FQxI's 6th International Conference in Tuscany, Italy, Ian Durham describes his attempt to do this.

Explore more:

• "The Year in Physics Review 2023": Ian Durham picks our the biggest advances in foundational physics in FQxI's annual countdown, with Zeeya Merali, on the podcast.
• "Testing Free Will with AI", with Avi Loeb on the FQxI podcast.
• "What Does Meaning Mean in the Natural World?", with Carlo Rovelli. Watch now.