Explore an intriguing lecture on an unexpected small divisors instability in general relativity. Delve into the complexities of general relativity, natural positiveness theorem, and global uniqueness as presented by Christoph Kehle, a Member of the School of Mathematics at the Institute for Advanced Study. Discover how this 23-minute talk challenges a false conjecture and introduces the concept of linear strong constant, offering new insights into the predictability and stability of general relativity. Gain a deeper understanding of this advanced topic in theoretical physics and mathematics through this concise yet informative presentation.