Ah yes, Ramanujan's famous proof that pi^2 is rational

I suspect saying if an array is "really" a vector, or a linear transform, or a photo, or a graph, or ..., is up to us as humans

Do you mean like: you have a (d x n) data matrix, hidden representations are, e.g., (4d x n), and the final output is say (2 x n). If so, isn't this the prototypical use case?

Right, we solved directly for the stationary state, but one could also integrate for the transient. I'll look into it... thanks!

Oh, you have some nice calculations for the cluster expansion! But I think this reinfection counting has the same equilibrium prediction as the regular pair-approx

collaboration with friends @oxfordmathematics.bsky.social Erik Hormann and @lambiotte.bsky.social