In the news pod, geneticist Henrik Salje tells us about the relative ineffectiveness of the measles vaccine for infants born via c-section. Also, the incredible memory-making abilities of Eurasian jays with Nicky Clayton, and Ramsey Faragher relates how quantum-based navigation can overcome the vulnerabilities of GPS. Then, Ulf Buntgen explains how tree rings have revealed that the summer of 2023 was the hottest in 2000 years in the northern hemisphere, and Toby Wiseman explains the marvel of our working theory of everything. Like this podcast? Please help us by supporting the Naked Scientists