Explore a 28-minute conference talk from the Uncertainty in Artificial Intelligence (UAI) 2023 Oral Session 2 that delves into the quantification of aleatoric and epistemic uncertainty in machine learning. Examine the appropriateness of conditional entropy and mutual information as measures for these uncertainties. Learn about the identified incoherencies in these information theory-based measures and the challenges surrounding the additive decomposition of total uncertainty. Gain insights from experimental results across various computer vision tasks that support the theoretical findings and raise concerns about current uncertainty quantification practices. Access the presentation slides to follow along with the speakers' arguments and visual aids.