General observations only: buildout ramped up in 2022 in several key areas, but big picture huge construction and infrastructure projects started in 2016 in several key locales and never stopped. For example 4x huge industrial complexes in NV and AZ started around 2015-16 are now together big enough to replace all of CA industry in 2026 with 2 getting their own nuclear plants. There appear to similar clusters elsewhere replacing IL, NY, and WA as if they are getting booted (or destroyed) along with CA. 1 in NV is a "new city" called McCarran, NV.

It is possible to build out infrastructure ahead of time, test it out, but then leave it "turned off" until a certain time. There was likely much of this going on at end of Trump 1.0 term.