Author(s): Maximilian Weimar, Lukas M. Rachbauer, Ilya Starshynov, Daniele Faccio, Linara Adilova, Dorian Bouchet, and Stefan Rotter A new algorithm tracks Fisher information through a neural network, revealing how information flows and transforms and offering guidance for designing more efficient networks. [Phys. Rev. X 15, 031072] Published Tue Sep 16, 2025