This video features Stephen Wolfram discussing his personal journey with a significant scientific discovery related to "multi-way systems" and quantum mechanics. He explains his initial resistance to the idea, his eventual realization of its importance, and how computational experimentation and visualization have been crucial to his scientific methodology. Wolfram also touches on the concept of computational irreducibility and its implications across various fields, highlighting that profound scientific understanding can take decades to develop.
After the 2019 physics project, Wolfram realized that the idea of multi-way systems, which posits many paths of history being followed by the universe, was correct. However, his initial interpretation that his own experience was just one path among many was not the right picture. He learned that observers are embedded in this branching universe and branch along with it. He also discovered that branches can merge and that an observer's experience can span multiple branches because minds are extended objects within this "branchial space."