Exact Results in Quantum Theory & Gravity

Probably not. On the off chance they should, I will introduce the concept and the basic classification with examples. Then, I will explain how quantum gravity could change the type of algebra, why that is a good thing and why the entropy in de Sitter spacetime is negative. Although the presented results (both in quantum theory and in gravity) are exact, the mathematical rigor shall be sacrificed to build a more convincing physical picture.Based mainly on 2206.10780 (Chandrasekaran, Longo, Penington and Witten, An Algebra of Observables for de Sitter Space)