--- title: "Echoes" canonical: "https://current.tinyfish.ai/issue/23/echoes" publication: "TinyFish" publisher: "TinyFish" language: "en-US" guide: "https://current.tinyfish.ai/llms.txt" permalink: "https://current.tinyfish.ai/issue/23/echoes" issue: 23 section: "echoes" description: "Past infrastructure decisions echoing in today's production realities" authors: ["Rina Takahashi"] published: 2026-04-06 updated: 2026-04-02 articles: 11 --- # TinyFish > CURRENT is a journal about AI agents in production, for the engineering and product leaders who have to make them work. Drawing on experience building enterprise web agents, it explains why the demo succeeded and the deployment didn't, and what that means for choosing vendors, briefing the board, and avoiding mistakes others have already made. [Read on the website]() ## Issue 23 — Echoes Past infrastructure decisions echoing in today's production realities ### The Inherited Topology - [60 Hudson Street and the Persistence of Place]() — By [Rina Takahashi]() · Published 2026-04-01 · Format: The Inherited Topology There are pneumatic tubes running the full height of a building in lower Manhattan. They were installed in 1930 to carry paper. They're still in use, though not for paper. What they carry now, and why nobody ripped them out, turns out to be the same question. ### The Ocean Floor - [The Seabed Remembers: 170 Years on the Same Ocean Floor]() — Published 2026-04-01 In 1854, a U.S. Navy oceanographer named Matthew Fontaine Maury identified an undersea corridor between Ireland and Newfoundland. He called it the "Telegraph Plateau." The plateau turned out to be a myth. The corridor was not. ### Following the Fiber - [A Conversation with a Data Center Site Scout Who Reads Railroad Maps for a Living]() — Published 2026-04-01 *Gail Parcell does not exist, which is a shame, because the data center industry could use her. She is a composite, assembled from the professional reality of infrastructure site selection consultants whose daily work involves reading geological and bureaucratic strata that most people never think about. We spoke with her over a video call from what she described as "a Holiday Inn in central Iowa that has better fiber connectivity than most office buildings in San Francisco." She did not explain how she'd tested this.* ### Rights and Routes - [Why American Fiber Follows the Railroad]() — By [Rina Takahashi]() · Published 2026-04-01 · Format: Rights and Routes Overlay a map of America's long-haul fiber optic backbone onto its Class I railroad network and the two are nearly identical. Same cities, same corridors, same hubs. The engineering explanation is straightforward: cleared ground, existing infrastructure, accessible terrain. But the deeper pull involves legal permissions granted to railroad companies in the 1800s that never expired, never narrowed, and kept drawing each new generation of communication technology into paths laid down for steam locomotives. - [The Same Narrow Water]() — By [Rina Takahashi]() · Published 2026-04-01 · Format: Rights and Routes On land, old legal corridors pull new technology into old paths. At sea, geography does the locking. In February 2024, a drifting cargo ship dragged its anchor across the floor of the Red Sea and severed three submarine cables, knocking entire African nations offline. The route those cables followed through the Bab al-Mandab Strait was the same route telegraph cables followed in 1870. The strait hasn't widened. ### Further Reading - **New York, New York! The NYC Carrier Hotel Microcosm** — [Source]() — Published 2026-04-01 Western Union's 1930 telegram hub at 60 Hudson still routes global internet traffic. The building outlasted the company. - **The Evolution of Carrier Hotels: 60 Hudson to Today** — [Source]() — Published 2026-04-01 Telecom deregulation met inherited real estate and created an industry. Good account of how carrier hotels actually happened. - **At the Bottom of the Sea: A Short History of Submarine Cables** — [Source]() — Published 2026-04-01 APNIC traces submarine cables from 1858 to fiber optics. The landing stations barely moved. The routes didn't either. - **I Traced Who Owns the Undersea Cables — The Map Is a Colonial One** — [Source]() — Published 2026-04-01 Colonial port cities became internet chokepoints. Big Tech now owns 70% of undersea bandwidth along those same routes. - **The Strategic Future of Subsea Cables: Egypt Case Study** — [Source]() — Published 2026-04-01 CSIS examines why so much global bandwidth squeezes through Egypt. Geography is policy by other means. - **U.S.-Iran War Threatens Gulf AI Infrastructure as Both Data Chokepoints Close** — [Source]() — Published 2026-04-01 Telegraph-era cable geography becomes live vulnerability as Red Sea and Hormuz disruptions hit simultaneously. History arriving as crisis. ## Other sections in Issue 23 - [Daily Brief]() - [Market Pulse]() - [Foundations]() - [Practitioner's Corner]() - [Vision]() ## More - [Publication guide]() - [Issue archive]()