Control Theory

If I am a one hundred percent rational person, sleeping is what I would do right now. It is now 12 AM. For about eight and a half hours from now I am expected to attend a class. But human happens to be an emotional creature. Sad to say (or luckily), we aren't design to be one hundred percent rational.

Once in a while I like to sit down and think about my life so far. You know, when you work in a company, there is this "job evaluation conversation". Once in a while your boss will call you into his/her office. At first you don't know what to say. You just sit there, staring at the painting behind the desk of a woman at night, surrounded by stars, painted by someone you don't know nor care. You can hear the sound of the clock loudly. Your breath becomes faster. You think it's maybe because of the sound of the clock. But then you realize you are just nervous. Nervous about what your boss will say about your performance in the company. Nervous about your job. Nervous about everything. Although you know you have been doing your best. You just think "maybe my best was just not good enough".

Just as a boss giving a job evaluation to his/her employees, I give myself an evaluation as a person once in a while. (Usually unintentionally triggered) If it happens, I usually ask myself some questions. Some are difficult questions, some are even MORE difficult questions. So, as you might know, it bothers me a lot. Damn you questions!

Today, I reach my conclusion. My system output is not equal to the reference.

:(

Luckily I have a closed loop transfer function.