
According to physicists, everything in the universe is physics. Chemistry, biology, why you crave cake at 11:00 pm – most of them (or even all our current actions) can eventually be explained by physics. But what if some physics problems require calculations that are just impossible? They can't be too many and their number could decrease in the next years or decades but they seem to exist. The authors of a new paper claim they’ve found a measurable quantity in a physical system that just can’t be computed, and Sabine Hossenfelder invites us to take a look while she is explaining the problem.