2026-10-16

Phil Zimmermann's firsthand account of creating PGP — the software that put strong cryptography in the hands of anyone with a personal computer — is a founding document of the modern internet. Written in his own voice, it reconstructs the political calculus of the early Crypto Wars: why patent law was the real battleground, why he published anyway, and why he treated encryption as a human-rights issue. It is a bracing reminder that privacy tools now taken for granted were once classified as munitions by the US government. For anyone who has ever wondered why end-to-end encryption exists, this is the original argument, from the person who lived it.

The world's timekeepers have voted to eliminate the leap second, allowing UTC to drift away from Earth's rotation for the first time in half a century. Leap seconds were inserted to keep atomic clocks aligned with the spinning planet, but each one caused recurring infrastructure failures — crashed schedulers, the 2012 Reddit outage, misbehaving GPS equipment — for the sake of a correction most people can't observe. The decision quietly rewires how every calendar, clock, and networked system on Earth is built, and it only becomes visible over decades, as noon slowly shifts away from the moment the Sun is highest. A genuinely momentous decision from one of the world's most bureaucratic institutions, with stakes that span astronomy, computing, and law.

Researchers used modal analysis on a 20th-century replica bell to reconstruct what the Liberty Bell may have sounded like before its famous crack. The work sits at a rare and satisfying intersection of acoustics, materials science, and history — using physical modeling to answer a question that documents alone cannot settle. Along the way it challenges the familiar story that the bell cracked on its first ring in 1846, suggesting a more complicated metallurgical history. It is a compact, elegant example of 'how we know' applied to a national icon.

This week's launch-industry roundup captures how abruptly rocketry has shifted from a procurement problem to a logistics problem: Stoke Space's reusable Nova upper stage ships out for testing, the FAA is planning for a much denser Starship cadence at Starbase, and India's Skyroot lands its first US customer. The through-line is industrialization — companies competing on flights per week rather than on reaching orbit at all. For a generation that grew up on spaceflight as rare and expensive, the numbers here are the real story.

Blue Origin says it is building New Glenn's ground infrastructure to support multiple launches per week by the end of the decade — a bet that reuse pays off at industrial scale, and a striking shift for a company long known for extreme patience and deliberation. The real story is competitive: can an engineering culture famous for caution thrive in an era where launch cadence is the metric that matters? New Glenn's early flights will be the first real test of whether Blue Origin can operate as a high-throughput launch business rather than a long-march R&D project.

The finale of a summer-long series following three hikers across one of the Pacific Northwest's most technical wilderness traverses, including the notorious high-country 'hitches' where the trail simply vanishes into granite and heather. It is a vivid portrait of how genuinely remote the North Cascades remain — a landscape where a wrong turn means days of bushwhacking and self-rescue. Beyond the adventure, it's a useful close-up of group logistics and decision-making on a trip that rewards patience and exacting route judgment over speed.

Citizen Lab has documented what appears to be the first publicly confirmed case of mercenary spyware delivered through targeted advertising — with no user interaction required. The technique turns the ad-tech ecosystem itself into an attack surface: the same infrastructure that tracks your browsing to sell you things is repurposed to install surveillance tools. It is a genuine first in the evolution of commercial hacking, and a chilling reminder that the pipes of the modern web serve whoever can pay for placement.

A map series visualizing North America after 700 meters of sea level rise — a deliberately extreme scenario that makes the continent's topography legible in a single glance. Unlike the familiar 1-2 meter projections of climate reporting, going this far lets the cartography show exactly how much of the nation's population, farmland, and infrastructure sits on land that would simply be gone. It is map-as-argument at its most persuasive, using spatial logic rather than rhetoric to reframe how the country thinks about its coastline.

Cartographer Vicky Johnson-Dahl has resurrected her 2016 NACIS presentation on how films use maps, cataloguing everything from plot-driving treasure maps to worldbuilding devices and character shorthand. It is a refreshing double lens: it makes movies more interesting to watch and cartography more interesting to think about. Once you've seen the taxonomy, you notice how often a map does the quiet storytelling work in a film — and how rarely audiences are meant to notice it at all.

In 1865 the US government printed the first wanted poster to use photographs, seeking the Lincoln assassination conspirators — and new analysis suggests one of the three faces may have been misidentified: the image labeled as one brother may actually be the other. The piece is a detective story about the earliest days of photography as evidence, when the medium's power to record was already colliding with its power to deceive. It is also a gentle warning that images have been read wrong for as long as they've been used to identify people.