I think <i>mesh doesn&#x27;t scale</i> is a pretty valid network assumption, in the general case.<p>So. Maybe an interesting question is: <i>What sorts of applications and protocols will work in a mesh topology?</i> That set might be interesting. For example, you could imagine big chunks of Nextdoor working well in a mesh topology, since it&#x27;s already a geo-limited social graph by design.