Explore Capsules

Public Wi-Fi security depends on understanding which protections apply at each layer: the network, the websites and apps you use, and any VPN you add. Learn how modern encryption changes the risks of open networks, when a VPN meaningfully helps, and how to judge whether a public connection is trustworthy enough for your activity.

Decades after the Zodiac killings, some of the ciphers are cracked and some still resist every attempt. These approaches differ on where the truth hides: verifying which letters are authentic, reading the solved codes for clues, wrestling with the short ambiguous ones, or chasing geographic hints like the Mount Diablo bearings. Following them shows why some secrets fell and others may never.

Crypto promises finance without banks and gatekeepers, and it also hosts a steady stream of fraud that costs ordinary people real savings. The views divide over whether decentralization's benefits outweigh those harms and whether regulation would protect users or defeat the point of the technology. Where you land shapes whether, and how carefully, you touch it.

The Voynich manuscript has resisted every attempt to decode its strange script and illustrations. These approaches differ between a multidisciplinary attack combining dating, art history, botany, and cryptography and a focused analysis of the manuscript's unique symbols and structure. You can weigh which path offers the most convincing read on its origin and meaning.