> Go on 10x'ing the presence of PVs until you find emerging constraints.

While true, I think it's fair to make certain guesses about other tech also being developed (such as, as you mentioned, batteries).

Even if they did not exist, constraints lead to conflicts, and conflicts can lead to exchanges of power.

(Different topic but same idea, constraint and conflict: when it comes to the never-ending battle of encryption, I do not see how to square the unstoppable force of "unbreakable encryption is very easy to make and vitally important to the use of the internet" with the immovable object that is "no state can survive when conspiracies are opaque to investigations and prosecutions").