@strypey The lessons, parallels, and crucially, /differences/ we can learn from the age of telegraphy are tremendous.
Of the first: it was digital, lightspeed, required transmission lines and links, was peer-to-peer, and rapidly developed into networks. Interruption and interception were possible (and instrumental in numerous events). It was store-and-forward.
Costs though were high, BW and access limited.
It changed culture, business, politics, language.