Randomness Posts

Sometimes it’s easy to forget what an amazing modern world we live in. Even if I think back just 10 years ago, it blows my mind how much has changed. Just in technology, even. In 2002: Nokia was the largest cellphone manufacturer. Their top selling model that year was the Nokia 6100. I actually had one of these as a loaner phone once. At the time I was carrying this more modest model - a Qualcomm QCP-2700, complete with green screen. Tablets as we know them today didn’t exist. Oh sure there were primitive early tablets - Palm Pilots and the Newton come to mind. But they had as much in common with today’s tablets as a horse does with a Ferrari. HP was the leading computer manufacturer that year - following their purchase of Compaq. The same HP that almost sold it’s computer division late last year. Facebook and Twitter didn’t exist, and the best site on the web for tech news was still Slashdot. Wikipedia had just opened the year before and was still seriously lacking content. Mac OS X 10.1 was released that year, and I spent all summer lusting over the Titanium Powerbook G4 with it’s PowerPC processor running at a blazing 800 megahertz and a huge 40gb drive. If you wanted to read a book, you bought a paper book. e-Book readers, while the existed, were clunky and difficult to use, and titles were mostly restricted to technical publications. Nothing like the Kindle, Nook, iPad and other readers. Using the Internet on a mobile device, if it was available at all, was extremely limited. Remember WAP? I remember being amazed in college that I could use my phone to check the scores of other games while I was at an Auburn game. Wanted to find your way around? You had a map or directions. GPSs as we know them today didn’t exist, and certainly weren’t integrated into phones. Contrast that to today. The phone in my pocket is more powerful, has more storage, than that laptop I spent a whole summer lusting over, and can be used to surf the web just as well as any computer. The tablet I carry with me has access to a whole library of books, can connect wirelessly to the Internet almost anywhere, and can be held with as single hand. If I ever get lost, I can pull up a map on my phone that pinpoints my location to within a few yards of my area, and can give me turn by turn voice directions to get where I’m going. Facebook and Twitter connect millions of people together. I can even connect to the Internet on my laptop _in an airplane at 35,000 feet! _Downstairs, I have a 60” widescreen TV that’s 1.5” thick and weighs so little that I could mount it on the wall. Every time I hear people complaining about how things suck, I’m reminded of this video. Because everything really is amazing right now. We are living in an amazing futuristic world full of fascinating advancements that are are happening all the time. And what is most amazing of all is how quickly we got here. The world of tech between now and 10 years ago are so different. What will the world of 10 years from now be like?

About ten years ago (summer of 2002), while I was working in Yellowstone National Park, I took a lot of time that summer for personal reflection. The the rocks beside the Snake River and the roof of the cabin where I lived became close companions of mine. I took a lot of time to examine where my life was at that time, and there were a lot of things that I didn’t like. Towards the end of the summer, based on my reflections, I started writing a short series of notes to myself. I titled these “Personal Initiatives” and set out what I wanted to change and how I was going to go about doing it. There were probably 50 or so entries. Some of these were fairly arcane and maybe even silly. Among them: Get rid of my acne by washing my face twice a day. Wear contacts any time I’m not at home. Take better care of my teeth. Get in better shape. Pursue financial independence and keep a budget. Get better grades and get at least a 3.0 from that point out. After I returned to Auburn that fall, I looked over my Personal Initiatives from time to time. And it occurs to me what a good motivation this was for me. As evidenced, my near term goals in many of my initiatives I achieved within the next 3 years. I never earned less than a 3.0 after that fall. I was financially independent in 2004. I’m in better shape now than I was. Not only that, but my plans gave me goals. Even the arcane ones (“wash your face every day”) gave me little things that I could do to feel like I had accomplished something every day. Not every goal had to be in outer space - I could accomplish 5 things just by walking out the door each morning. Of course, some of them I completely blew too. There were a lot of entries about future planning that involved me becoming a pilot. Some other entries concern wanting to have a family (not there just yet…). But overall, I would say my success rate for my personal initiatives in 2002 to today is probably close to 75%. The reason I’m thinking about this is that I kind of feel a bit like did in the summer of 2002. Lost. Listless. Unsure of what I want in my life but unhappy with where I am. And without a plan. Every day I get up and go to the same job and do the same things I’ve done for the last five years. Then I go home and do the same thing each night. The cycle usually never varies. Now, to be sure, my life is much better than it was in 2002. I’m married, a homeowner, active in my community. But that seem creeping, nagging unhappiness is still there. Unfortunately, I don’t have the luxury of taking an entire summer off to work and reflect on my life. But I’m seriously thinking that it might be time to write down some more personal initiatives. Having passed 30 now, I can’t help but feel that I’ve entered a new stage of my life and, if I don’t want to spend this entire decade listless and unhappy, that I have to begin to plan some things out and set some goals for myself. Yes. I think it’s time for some more Personal Initiatives.

Using GoDaddy as my registrar is one of those things I’ve always felt vaguely ashamed of. Something I knew all the “cool kids” didn’t do, but I was already so neck-deep in them that I didn’t want to transfer. Not to mention I had my DNS hosted with them as well so the thought of going through all that trouble to move just seemed like too much of a hassle to deal with without good reason. In my last entry, I talked about setting up your own DNS server. This was the first part of my attack on moving my domains away from GoDaddy. But I didn’t have a real timeline to move away from them. Then came the news of GoDaddy’s support for SOPA - one of the worst attacks on the Internet since 1996’s Communications Decency Act. Now, to be sure, GoDaddy’s position on SOPA was not the first thing they’ve done to anger me. Their overtly misogynistic advertising has always bothered me, and their CEO Bob Parsons’ elephant killing and shameless exploitation of the natives angered me so badly that I almost left in April. But their aggressive support of SOPA was the final straw for me. I’d been a customer since 2003, but I simply could not take it anymore. So over the course of about 4 days, I transferred all my domains to Namecheap. Having never transferred a domain before, the process was surprisingly quick and easy. Once again, it makes me wonder why I haven’t done it sooner.

Revolutions are a dirty business in every country they occur in. Libya is no exception. Moammar Gadhafi was a terrible human being. He was a thorn in the side of 5 US Presidents. He actually did pursue a WMD program, only giving it up in 2006. Under him, Libya was a state sponsor of terrorism and was behind the destruction of Pan Am flight 103. At home, he brutally repressed his population and ruled with an iron fist. In short, he was not a nice person. According to a report on the BBC that I was listening to on the drive home, he was found hiding in a drain pipe in Sirte. He begged for his life, and was shot in the abdomen and again in the leg. Supposedly he “died” en route to a hospital, but at least one report mentioned an execution-style shot to the head. Now, is this what happened? There’s no way to know, and I suspect we never will for sure. And yet, I find myself having some difficulty taking any “joy” in his death, especially a death such as that. No man who begs for his life should be killed, especially without due process. I would much rather have seen him turned over to ICJ authorities and tried for crimes against humanity. And yet, it may have been the best possible outcome. Libya is not a stable country at this time and probably lacks the facilities to hold Gadhafi securely. There would be months of negotiations that would have to happen before he even got to a trial. All that time, his continued defiant existence would continue to empower his dwindling base. With him out of the picture, the rebels / new government should have little problem establishing itself as the new legitimate government of Libya, thus drawing a close to this whole thing even faster. Revolutions are a dirty business.

Unlike Steve Jobs, unless you’re in the tech industry, there’s a pretty fair chance you’ve never heard of Dennis Ritchie.

Normally, I’m not one to be too taken with the death of a “celebrity” … … but this one hurts. We truly lost a titan of our generation. A man who became synonymous with the company he founded, and whose products made life more awesome for millions of people. As I look around my house, pretty much every room has some touch of Apple, and all of that thanks to Steve. Rest in Peace, Steve Jobs. The world was enriched by your presence and is saddened with your loss. Thank you for everything you did.

So with the landing of Atlantis, the end of the Space Shuttle program has finally come. And while it is bittersweet - I remember being able to watch the shuttle go up from my backyard (literally!) when we lived in Florida - you have to excuse me for slaughtering the sacred Huntsville cow. The retirement of the Space Shuttle is long overdue.

The recent announcement by Linus Torvalds that the next release of Linux will be 3.0 has provoked rather furious discussion around the Internets about whether or not the incrementing of the version number is warranted. Linus himself has said that “absolutely nothing” has changed. “It will get released close enough to the 20-year mark, which is excuse enough for me, although honestly, the real reason is just that I can no longer comfortably count as high as 40.” This got me to thinking about the nature of version numbers. Once upon a time (when versions were driven more by engineers and convention, and less by marketing), a version number meant something. Major, minor, revision. A major new release that modified significant portions of the code from the previous release incremented a major version number. Version numbers less than 0 were beta releases. Linux has been at 2.x since 1996, and at 2.6.x since 2003. Mac OS has been at 10.x since 2001 (even though the current version of OS X is significantly different from the original release in 2001). Meanwhile, Google Chrome has blasted through major 11 “versions” in three years. Mozilla is planning to release versions 5, 6, and 7 of Firefox this year. You can’t tell me that they are going to change major parts of Firefox three times this year. In this case, version numbers are purely being driven by marketing. They need to “catch up” to Chrome and Internet Explorer. But we live in a different world now. One where, arguably, version numbers are becoming less and less important. The growth of “app stores,” I think, is desensitizing your average user to a version number. While apps in the app store still have versions, I couldn’t tell you what “version” any of the apps on my iPhone are (other than the OS), and I bet you can’t either. Any of the apps I’ve installed from the Mac App Store I could not tell you the version of them. I just know that, when I see the number on the icon, I know I need to do updates. The updates happen, and I get a new version with whatever new features are there (or, in the case of the Twitter app, whatever features have been removed). Then there are web apps which are versionless. What version of Gmail do you use? You don’t. You use Gmail. Sure, there’s probably a revision number or something in the background, but the user has no clue what version they’re using. And they don’t need to, because there’s no action they need to take. So version are numbered in a wide variety of ways depending on the product and overall seem to be becoming less important as the growth of broadband, “app stores,” web apps, and automatic updates make thinking about version numbers less important. So why does it matter if Linus ups Linux to 3.0? Ultimately, it’s just a number.

I’m looking out my window right now at my neighbors. They have their kitchen lights on. Inside my house we have light - plenty enough light to light the whole room. And yet I still find it difficult to wrap my head around what just happened.

Over the years, I’ve seen a number of blog posts relating to common questions that should be asked of programmers. Obviously, this is going to depend on exactly what position you are hiring for, but there are some good “gateway” questions that can be used to determine whether or not an applicant you are interviewing can … well … even program at all. If they even have the mindset that makes a good developer. A common one I’ve seen tossed around is Fizz Buzz. The challenge goes something like this: Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both three and five print “FizzBuzz”. Now, to anyone who even has a basic understanding of programming, this is super simple to solve using a modulus operator. But apparently many people applying for even entry-level development jobs cannot solve this problem. According to the article linked above, even one “senior developer” took 15 minutes to solve this problem. Earlier today, a friend posted something on Facebook that inspired what I think it another good, intermediate to difficult level programming question that also looks for pattern recognition. The relevant part of the post began by stating: “This year July has 5 Fridays 5 Saturdays and 5 Sundays.” There is the question! It would go something like this: The month of July 2011 has 5 Fridays, 5 Saturdays and 5 Sundays. Calculate the next 50 times there will be a month that has 5 Fridays, 5 Saturdays and 5 Sundays. Woah, so how to go about solving this problem? Well, look at a picture of July 2011. Notice something interesting about this month in relation to the question? This month has 31 days (the most any month can have), begins on a Friday and ends on a Sunday. And that’s the solution! It’s any month with 31 days that begins on a Friday! With this in mind, it’s pretty easy to come up with a PHP solution: <?php $count = 0; $num_found = array(); while(count($num_found) < 50) { $count++; $ts = strtotime("$count months"); if(date("t", $ts) == 31 && date("N", strtotime(date("Y-m-01", $ts))) == 5) { $num_found[] = date("F Y", $ts); } } print_r($num_found); ?> Note that I make use of PHP’s strtotime function, because it is the Swiss Army Knife of date manipulation in PHP. This would need to be adapted for use in another language. So now tell me: what are some other questions you’ve been asked or asked in an interview?