The telegraph and the telephone. The enabled economies of scale and speed of dec... | Hacker News

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		kwhitefoot on Feb 10, 2020 \| parent \| context \| favorite \| on: Ask HN: What’s the most important modern simple in... The telegraph and the telephone. The enabled economies of scale and speed of decision making that were not possible before.

axilmar on Feb 11, 2020 [–]

This. This is what enabled our modern world. None of what the other mentions would be possible without communications.

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