You’ve heard of bitcoin. It’s a form of digital cash you can send to anyone, even a complete stranger. You may not have heard about bitcoin's digital ledger, called the blockchain, tracks and validates bitcoin transactions. Blockchain technology has enormous potential beyond bitcoin to automate every type of online transaction that requires a degree of trust. In this short video, produced by Institute for the Future (where I am a research director), Olivia Olson (the voice of Marceline the Vampire Queen in Adventure Time) explains how blockchain technology can be used to launch companies that are entirely run by algorithms, make self-driving cars safer, help people manage and protect their online identities, and track the billions of devices on the Internet of Things.
David Gerard is a technically minded, sharp-witted, scathing critic of Bitcoin and other cryptocurrencies; his criticism is long, comprehensive and multipartite, but of particular interest is is critique of "proof of work" (an idea that is central to the blockchain, but which many cryptographers are skeptical of).
By design, data placed in the blockchain is visible to everyone in the world and can never be removed; everyone who mines bitcoin makes a copy of the blockchain, and so any illegal content stashed in the blockchain ends up on the computers of every miner.
Cynthia Lee, inspired by a tongue-in-cheek request by Christopher Mims, created a Chrome browser extension that replaces the word “blockchain” with the phrase “mulitple copies of a giant Excel spreadsheet.” WHAT: This is a Chrome browser extension that can help readers contextualize news stories with hype about blockchain technology, by reminding you that blockchain is, […]
Summer’s here, which brings not only warmer weather but also the unsettling realization that the year is more than halfway over. So, for those who weren’t as productive as they would have liked during the first half of 2018, we’ve rounded up 5 skill course bundles you can start learning today to help you finish […]
It’s good to be proactive, but when it comes to preparing for an emergency situation, one of the most important items you can pack is a flashlight. After all, whatever else you include in your kit won’t be of much use if you can’t see what you’re doing. The Viper 1000-Lumen Tactical Flashlights not only […]
Chances are you took a handful of language classes in high school, and aside from a smattering of conjugations and vocabulary words, the only things you likely remember are the dry, rehearsed sentences that did little to make you speak like a true native. If you’re still hoping to learn a new language but want […]