Comment by redgreenblueyel

I agree that a formalization of coherence (if it exists) probably would be more complex than a few constraints on a simple graph representation. However, this sadly gives no clue about whether it exists or not. The adoption argument is a little bit missaligned in my opinion. Coherence should make an abstract statement about how easily new changes can be integrated, not necessarily how long it takes humanity to do so. While there may be a statistical argument here, a single example might also be influenced by other effects, like trends, etc. Also, just because humans needed a lot of time to end up in a somewhat coherent state of futures, does not imply that there cannot be an abstract pattern here. I think the real question is whether coherence is context dependent or not. Or in other words, can the context influence how entangled the graph looks like.