Thanks for the write-up, and don't worry about the length (the longer the better). This is long-form content I'd love to see more of on SN (I should be the change I want to see and write stuff myself).

With the other Starlink Direct to Cell post on SN today I feel a little bit uncomfortable that all of this foundational infrastructure (physical AND digital interconnectors) are so centralised. As you mentioned, individuals can run their own energy infrastructure, but I haven't really heard of people running their own internet (waiting for @davidw's post on the future internet).

My two cents on your writing (meant as constructive criticism). You hooked me with the history of the transatlantic cable, and gave a great overview of interconnectors, but then lost me with (what seemed to me) a confusing detour into public miners and oil prices. Interesting detours, to be sure -- but as someone with no prior experience, i would appreciate some signboarding to explain how those things are relevant to your central thesis (which you laid out nicely in your conclusion). Cheers