Roy Tang

Programmer, engineer, scientist, critic, gamer, dreamer, and kid-at-heart.

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Blog: A blog is a website consisting of discrete, often informal diary-style text entries, typically displayed in reverse chronlogical order. A single entry is called a blog post. You can subscribe to an RSS feed of this list.

Aug 2016

  • Pros: It is a very rewarding career financially. Software development often ranks in the top 10 highest-earning careers in most countries There is a lot of scope – you could be developing web applications, mobile applications, embedded applications, client-side, server-side, data analysis, artificial intelligence, games, etc It is very difficult to be bored. You can always automate away the boring stuff. Different projects always present different challenges. The field is evolving rapidly so there are always new things to learn.

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  • Motivation vs Discipline

    Motivation is a fickle mistress. It comes and it goes. It’s easily distracted. It can vanish in a blink of an eye. When it’s there, it’s great, but when it’s not you don’t get anything done and you don’t feel terrible. Motivation is based on the principle that you need a certain emotion or state of mind to get things done. Motivation is burst damage, you can get a lot done but you don’t know when it’s gonna come out.

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Jul 2016

  • Evaluation of programmer performance is notoriously hard. You want to be accurate and at the same time fair such that all programmers on your staff are evaluated in the same matter. However, there are no good, objective, universally accepted standard metrics. It follows from the fact that there are no good, objective, universally accepted standard metrics for program size. Typically each programmer in a team will not be doing the same task or even the same type of task, so in order to produce fair evaluations you will need some standard metric of program size to normalize any evaluation.

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  • The Promise of Social Media

    When blogging and social media started to explode in popularity, it held a great promise: it would give a voice to the masses. Where previously there were gatekeepers in traditional media channels who controlled whose opinions could be published or broadcast, the internet meant that anyone with an internet connection could publish and voice out their thoughts and people would be all smart and there would be lots of intelligent discussion and it would be great.

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  • Learning to SQL

    ****Since I wasn’t a graduate of computer science, there were many concepts of software development I really only got exposed to when I started working. One of those was the concept of a relational database, and hence SQL. The company I worked at gave all new hires a training regimen that started with about a week of SQL. Despite not knowing anything about it beforehand, I took to it like a mouse takes to cheese.

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  • Evolution of Society

    I found this draft blog post that I had written back in 2010. I’m not sure why I never published it, though it does end on a dire note and seems a bit incomplete. Perhaps I had some further thoughts percolating in my brain back then that never came forward. I am also not sure if I wrote this before reading about The Great Filter. I figured I’d just publish it now without further comment:

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  • Certifications

    I never really put much stock in certifications. I felt that they were no guarantee of knowledge or expertise, and that many people who did have knowledge or expertise wouldn’t necessarily have a certification to say so. Add to that it often seem overpriced to even apply for the certifications, so I didn’t have a high opinion of them. That being said, I have had the opportunity to take professional certification exams twice in my life (both luckily paid for by my employer at that time).

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  • Dealing with Failure

    During my the first semester of my second year in University, I failed four out of five classes I was taking due to slacking off a lot. Those same classes were only available during the first semester of each year, which meant I could not retake them during the second semester or over the summer to catch up. So effectively, I had fallen one year behind everyone I knew. When I got the news, it was devastating.

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  • A friend of mine had an informal consultation with me the other day (read: asked me questions over FB messenger) about what their IT staff was telling them about a file upload vulnerability that had been recently exploited in one of their applications. Obviously it was difficult for me to judge given that I didn’t know all the details, but for me it was most likely a vulnerability introduced in the application code itself.

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  • Continuous Learning

    During my adult life, I’ve tried to learn or at least expose myself to one new skill or programming language every year. For example, over the past year or so I’ve been studying, dabbling, or trying out the following: game development using Unity, technical analysis of stocks, Spanish, driving a car, and even some simple cooking! I’ve also been regularly practicing to improve my skills in writing and sketching. I probably even forgot a few things I’ve tried to learn.

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Jun 2016

  • Some time ago, one of my many intrepid followers pointed out that this blog tested poorly on web page performance according to this Speed Testing Tool. Now, I’m of the opinion that for a personal blog such as this, web performance isn’t really a mission-critical sort of thing, but as a software developer who has often had to work hard to optimize the web applications we delivered to our clients, it kind of became a matter of pride :p

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  • Ice Candy

    I read an article recently about how we should encourage entrepreneurial spirit in kids from a very young age. It made think of a time when we were kids and we tried running a business It was a summer from years ago. Perhaps 1988 or 1989, or maybe a year or two earlier, I can’t be sure. I was young, my brother was younger by a few years, my female cousin older by a few years.

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  • Working with Testers

    I had my first taste with working with software testers during my first project where I was involved with porting an old system to a new version of the software. My first task involved porting reports which were to be generated by the users then printed out. The task wasn’t too difficult: basically you took the source code of the report (it was some weird binary format recognized only by the particular reporting tool – that was how it was done back in the day) and open it using the newer version of the tool, and the tool did some sort of migration magic to adapt it to the new format, then you just save it back again.

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  • Everyone is Biased

    Grammar note: “Biased” is an adjective. “Bias” is a noun. It is not appropriate to say that a person or an entity “is bias”. Unless you are talking to like a prejudice elemental or something (takes note of that for hypothetical hipster RPG) In a (long-winded) discussion during the recent election period, someone told me that I “obviously had a bias” and my answer was “Of course I do! Everyone does!

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  • In the modern era of online services and applications, it is getting more and more common to hear of databases and systems being hacked and user data being exposed. The most dangerous of this data is the user’s password since it may allow access not only to your own service but to other services as well. As an application developer, the below is probably the bare minimum you need to know when handling user passwords:

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  • Password Security for Dummies

    Around the first week of June 2016, Mark Zuckerberg, well-known nerd and founder of Facebook, was hacked. If even the founder of the world’s largest social network can be hacked, anybody can! So it might be a good idea to review how you manage and secure your online passwords    **Avoid using short, simple, or commonly-used passwords! **These are subject to so-called “brute force” attacks where bad actors just try a whole lot of passwords until they find one that works.

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  • More stories from the early days. Evaluating someone’s programming ability is hard, especially someone fresh out of college. A student’s grades is in no way indicative of how well he can program after all. So most nontrivial programming jobs have some sort of complicated application process involved. I remember going in and taking an exam. Most application processes will have some sort of written exam to filter out people who look good on paper, but can’t actually do anything.

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  • Immortality

    “Do you know what’s there, waiting beyond that beach? Immortality! Take it! It’s yours!” – Achilles, Troy Each person has a different view of what their life’s purpose is, but I’ve found more often than not it relates to some form of immortality. Usually that means leaving something behind, some trace of yourself so that the world remembers you, something that says “I was here, I existed.” For many people that means offspring, for others it may mean some other legacy: children taught, people helped, ideas expounded, inventions created, companies founded, and so on

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  • You Are Not Your Code

    I once had to advise someone who found himself irritated at receiving lots of comments during code review. I think my response was good enough to quote verbatim: Remember: You are not your code. You are not the hundred or so lines of C or Java or JavaScript or whatever that you wrote today. This problem arises because you are too attached to your code. Your ego is associated with the code you write and you feel that any comments or defects found reflect upon you as a person.

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May 2016

  • Hearthstone vs MTG

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  • Origin Story

    A while back I answered a question over on Quora about how I got started down the path of programming. It’s not a particularly interesting story, but I still thought I’d record it here for posterity. Sometime when I was much younger, maybe somewhere between twelve to fourteen years old, I remember having some sort of QBasic programming learning book at home. I forget how we got it, I think my uncle brought it home for me sometime for some reason.

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  • Debating On The Internet

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  • "Everyone knows the third movie is always the worst" -- Jean still too much focus on Jennifer Lawrence/Mystique some great soundtrack choices Quicksilver scene maybe just a tiny bit too long. Tradition of defying the rules of physics continues (I hope someone does the math on how fast he was probably moving) nice 80s wardrobe lol not particularly faithful to the source material plot is all over the place, a lot of WTF moments here and there.

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  • Stellaris (Review)

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  • We shouldn’t have to keep telling people that Ferdinand Marcos was a terrible president and that the Martial Law he imposed was terrible for the country. Imagine if a significant percentage of German citizens kept insisting that Hitler was a great man and the more sensible Germans had to keep trying to educate them on why that wasn’t true and why World War II was a terrible idea and that they wanted to elect Hitler’s descendant to a position of national prominence.

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  • Elections 2016 -- My Ballot

    This has been one of the most divisive and shenanigan-filled election campaign seasons ever, and politics is normally crazy in this country so that’s saying something. There’s a strong use of social media this time around, and it’s led to the internet being a hotbed of opinions and propaganda and memes and lies and half-truths and threats of violence. I was hoping greater citizen involvement via social media and the debates would mean citizens have more information and thus would get to be more discerning, but it seems that things have only gotten worse.

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Apr 2016

Mar 2016

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  • Sketching Daily

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Feb 2016

Jan 2016