When Qwest refused the NSA’s illegal request that it hand over its customers’ data without a warrant, the NSA wasn’t happy. According to former Qwest CEO Joseph Nacchio, the government hit back for the telecom’s refusal by denying them lucrative contracts (log-in required) worth hundreds of...
Generic data structures (vectors, queues, maps, trees, and so on) seem to be the hot topic if you are evaluating a new language. One of the most frequent questions we've had about Go is where the generics are. It seems like there are three basic approaches to generics:
What would happen if you were to gather a mole (unit of measurement) of moles (the small furry critter) in one place?
We use MySQL for storing all of the data in FriendFeed . Our database has grown a lot as our user base has grown. We now store over 250 million entries and a bunch of other data, from comments and "likes" to friend lists.
Thunderbird provides an open-source, cross-platform email alternative for those of us who still use stand-alone email clients (and I am one). It’s trust-worthy, it’s under your control, and it’s built to reflect the Mozilla mission. Once again we’ve been asking the question: is Thunderbird a likely source of…
(Thanks to Amit Sahai for spurring me to write this post!) The Background We all remember Gödel’s First Incompleteness Theorem from kindergarten. This is the thing that, given a formal syste…
A tour of free monads and their motivating use cases
New York State legislators defend the War Emergency Tenant Protection Act—also known as rent control—as a way of protecting tenants from war-related housing shortages. The war referred to in the law is not the 2003 war in Iraq, however, or the Vietnam War; it is World War II. That is when rent control started in […]
Mary Eberstadt’s Weekly Standard article The Elephant in the Sacristy shines a strong light on facts that will discomfit many of the politically correct. I don’t completely agree with her analysis; as Amy Welborn argues , Ms. Eberstadt is too quick to dismiss the role of the doctrine of celibacy in creating an…
When a browser connects to an HTTPS site it receives signed certificates which allow it to verify that it's really connecting to the domain that it should be connecting to. In those certificates are pointers to services, run by the Certificate Authorities (CAs) that issued the certificate, that allow the browser to…
Tour de Babel Stevey's Drunken Blog Rants™ This is my whirlwind languages tour — the one I was going to write for the Amazon Developers Journal this month, but couldn't find a way to do it that was... presentable. For one thing, I lapse occasionally into coarseness and profanity here, so it
Crypteto has a 49,152-bit symmetric key: The most important issue of any encryption product is the ‘bit key strength’. To date the strongest known algorithm has a 448-bit key. Crypteto now offers a 49,152-bit key. This means that for every extra 1 bit increase that Crypteto has over its competition makes it 100%…
programming, philosophy, history, internet, startups
I hate Booleans! But isn’t everything “just bits”? Aren’t computers built from gates? And aren’t gates just the logical connectives? How can a Computer Scientist p…
Another great post
If we adopt solar and wind as major components of our energy infrastructure as we are weaned from fossil fuels, we have to solve the energy storage problem in a big way. An earlier post demonstrated that we do not likely possess enough materials in the world to simply build giant lead-acid (or nickel-based or…
Xanalogical Structure, Needed Now More than Ever: Parallel Documents, Deep Links to Content, Deep Versioning and Deep Re-Use
See part 2 of Privacy in Ubuntu 12.10: Full Disk Encryption. Earlier this month the eagerly awaited free software operating system Ubuntu 12.10 was released, and it includes a slew of new features (YouTube link), some of which have infuriated users because of privacy concerns. Over the last couple...
"I'm going to beat grep by thirty percent!" I confidently crow to anyone who would listen, those foolish enough to enter my office. And my girlfriend too, who's contractually obligated to pay attention to everything I say.
SeekerBlog is a field guide for modern seekers: mindful travel, deep curiosity, science, creativity, slow living and self-discovery. Essays, guides and stories for those who seek more.
This PEP outlines the behavior of Python scripts when the python command is invoked. Depending on a distribution or system configuration, python may or may not be installed. If python is installed its target interpreter may refer to python2 or python3. ...
How to implement type classes in terms of term-level data structures
グロリアの無料予想検証結果 競走馬を題材にしたアプリゲームが大ヒットしたことにより、競馬には大きなムーブメント...
Note: Many of these questions are now answered in much more depth in my book, Weaving the Web
While the Common Lisp standard does not require implementations to eliminate tail calls, some do—thereby allowing a more functional programming style. Especially in the prototyping phase, it can be useful to know where this functional style can be employed and where it's likely to cause stack overflow. Since I…
Parallelogram is a demo running on the Commodore One extender board, which contains an Altera Cyclone III FPGA and an SDRAM chip. The logic design was made from scratch, including a homebrew CPU, FM synth and blitter with pixel shader support. The demo won the wild compo at Revision 2012 .
[ An updated treatment of this material appears in Chapter 1 of the Energy and Human Ambitions on a Finite Planet (free) textbook , and also appears as part of an article in Nature Physics in 2022.]
This is a big deal: On May 13th, 2008 the Debian project announced that Luciano Bello found an interesting vulnerability in the OpenSSL package they were distributing. The bug in question was caused by the removal of the following line of code from md_rand.c MD_Update(&m,buf,j); [ .. ] MD_Update(&m,buf,j); /* purify…
Last week I was in Vancouver, to give talks at the University of British Columbia and at the American Association for the Advancement of Science annual meeting. As part of that visit, on Friday af…
Dwight C. Lundell, M.D. lost medical license in 2008. Since that time he has been promoting books that clash with established scientific knowledge of heart ...
