Small Perturbation

Something that caught me by surprise was the release of libbdplus which happened almost exactly one year ago. This filled a gap in the free software community that had been open since 2007 when the first BD+ discs came out.

The story here is that Bluray discs won the format war against HD-DVD because they don't just encrypt their files with AACS. They include a diabolical piece of self-modifying code called BD+ which gained an early reputation for thwarting decryption efforts. For many years, open source Bluray decryption tools only existed for discs that were BD+ free. Those cracking tougher nuts had to use MakeMKV and AnyDVD which kept the source code hidden thereby making important knowledge vulnerable to censorship.

In 2009, when I first heard about VideoLAN's plan to develop libbdplus, the lack of a git repository was suspicious. Why would a group known for prompt code releases in all of their other projects suddenly decide to develop one behind closed doors? Especially the most anticipated advancement since libdvdcss. Years went by and rumours of an imminent release became less frequent. Not only that, but other BD+ projects ceased development because they saw no need to duplicate effort. By 2013, I was not just accusing the developers of changing their minds, but causing outright damage to free software in the process. The end of December 2013, when they released libbdplus after all, was the time for me to take it all back. But hey, it's Christmas... a time to be pleasantly surprised!

I need to mention a fun thing that I did almost exactly when this site went offline. I signed up to volunteer in an RCMP training exercise scheduled for June 18, 2013. At the information session, the head of Risk Management UBC told us that one could either get up at 8am to play a regular hostage or get up at 6am to play a hostage wearing bullet hole makeup. I chose the former.

The RCMP officers tried to keep their techniques as secret as possible. I got this picture before the hostages went to their assigned buildings, but I didn't take any once I was inside. I don't think anyone else did either, for fear of being kicked out. The closest thing we have to a picture of the actual rescue comes from an article in The Ubyssey.

I started thinking about memorable events from the last year and came up with a painting session that people had at my residence. Actually two of them. At the first one, I painted Spider-Man, but it took such a long time that I didn't get to put anything in the background. Because of this, I suggested another painting session to the soon-to-be Residence Association President as he was campaigning door-to-door. I'm pretty sure they would've held one anyway. At the second one, I completed the scene by painting some upside-down buildings. Both events had a great turnout... probably because of the ample supply of paint, canvases and wine. I only have a picture of Spider-Man, but it was great to see what pictures other people came up with. When some one was painting a landscape, I said it looked like something by the Group of Seven. This turned out to be true, since the guy said he had a painting by A. Y. Jackson in mind when he started it.

My site has been down since mid-2013 but I finally got it back up about a week ago. Much has happened in that time (such as starting a new degree) and I plan to post some random anecdotes from the past year as if the down-time never happened. If you are worried about the site going down again, don't be. I am now paying $10 per month to Linode which is very organized. To make a long story short, Justin Hayes stuck it out well all this time, but after high school, most people just have too much uncertainty in their lives to be reliable web hosts.

There is a party game called Zombie Dice where you roll dice and try to get as many points as you can without losing all of your health and dying. Green dice make points more likely than death, red dice make death more likely than points and yellow dice are neutral. I played it with some friends awhile ago and realized that it was probably simple enough for me to come up with the optimal strategy.

Just about every game is solvable in principle, but it is very easy to make a game that would take longer than the age of the universe to solve. The prototypical solved game is tic-tac-toe. The prototypical game that is still a long way from being solved is chess. An xkcd comic lists a bunch of solved games so let's see how we can add Zombie Dice to this list.

Gaze upon my newest creation. This setup is probably the first of its kind. The black clock showing 2:17 is a digital alarm clock. It sits on top of a clear box holding a circuit board that I made. The white clock showing the wrong time is an analog alarm clock. I can confidently say that when the digital clock reaches the alarm setpoint, the mechanical bells on top of the analog clock will ring.

Even though I study theoretical physics I am very happy to be in the same department as people who are well versed in machining, robotics and other useful endeavours. There is something very satisfying about sitting down to make a device that serves a particular purpose and seeing it through to the end.

It is that time of year again when the residence I am in puts on a musical. The production they chose was Fame and this year they did something different... they had this contest:

There are easier ways to see a musical for free if you want to. Show up very early when the cast and band members arrive and bring a book. Usually you can go in because ticket checkers will not have arrived yet. And everyone will just assume that someone in the production gave you a ride. However, I wanted to win this contest, not because it meant free tickets, but because it meant winning a contest.

If you're in the habit of searching Google for things that have to do with your favourite TV show, you may have come across an entire wiki devoted to it. Wikipedia certainly has its own articles about fictional universes but the fan wikis are supposed to report on them in a much more detailed and obsessive way. Even though you sometimes see them on Wikipedia, detailed descriptions of every scene in a movie are unencyclopedic. These belong on the fan wikis because "merely being true, or even verifiable, does not automatically make something suitable for inclusion" as stated in the relevant Wikipedia policy.

Most of these fan wikis are hosted on Wikia, a for-profit site that used to have the same look and feel as Wikipedia. By now, the look and feel has drastically diverged. Even though it still uses the same software, Wikia has been dumbed down and uses gimmicks like floating bars that follow you as you scroll down the page. However, I still use the site a great deal because the amount of information on it is truly vast. What I want to do now is explain the differences between the two interfaces and then give some ideas for wikis that haven't been created yet.

It's the holiday season. And that means I get to be reminded of how logical air travel is. One of the most annoying things is that I can't take everything as carry-on luggage. Don't get me wrong, I hardly bring anything. But two things I usually bring are a razor and shaving cream which security guards tend to take away. Because of that, the idea of checking in online saves no time at all. Here's what the screen should really say:

Nevertheless, I got to the airport on time and was able to stay relatively occupied on the plane.

I use a very old laptop which only has USB 1.1 ports built into the motherboard. In order to use cameras, external drives and printers, I have always put a PCMCIA expansion card in my computer that provides two USB 2.0 ports. The PCMCIA bus is based on PCI, so it supports transfer speeds of 1Gbps... more than enough for the 480Mbps of the USB 2.0 standard.

On this card, the black hump with the USB ports sticks out of the laptop. This is the card that I used to use but it just broke. After years of using it, I noticed that it failed to detect my printer one day. It still detected my thumb drive but mounting it caused it to unmount 5 seconds later. It has a Firewire port as well and I've only had to use this once for a Mini-DV camera. I'm not sure if this part is broken. But anyway, I just got a neat replacement for it.