We casually talk about data living "in the cloud," streaming video over invisible Wi-Fi, and the internet as something weightless and ethereal. The truth is far more grounded — and vulnerable.

In this episode, we dive into the astonishing physical reality of global telecommunications: the massive, heavily armored submarine cables lying in the freezing mud at the bottom of the ocean. From the Victorian-era engineering miracles of gutta-percha insulation and layered steel armor to the dramatic transatlantic cable saga led by Cyrus West Field, we uncover how 19th-century pioneers conquered crushing pressures, signal distortion, and the tyranny of distance to create the first global nervous system.

You’ll discover why early cables failed spectacularly (including a surgeon-turned-electrician nearly destroying them with excessive voltage),  ...