Today, I want to write about weightlessness based on my own understanding of it. A long time ago, people believed that heavier objects fell faster than lighter ones. Galileo challenged this idea, which had been passed down since the time of Aristotle. He believed that, without air resistance, the acceleration of a falling object does
One thing I learned about physics is that force is not necessary to maintain an object’s velocity. Force is needed to change its velocity—its speed or direction. The Earth orbiting the Sun is a good example. The Sun’s gravity does not give the Earth the speed it needs to keep moving. The Earth already has
At the beginning of September, I visited UBC’s Vancouver campus. Universities, libraries, and bookstores have always been places where I feel the outside world can be shut outside. There, you can read, learn, think, create, walk—or simply sit down and do nothing. When I arrived at the UBC campus, it was late in the afternoon.
Last Friday, as usual, I went to the company cafeteria to get my lunch. There I saw a girl who looked somewhat familiar to me. While I was trying to decide whether I knew her, she turned to me and said, “It’s me.” Then I realized who she was. She works at the company cafeteria,
I ran into the word “无常” a few days ago, and it really intrigued me to find out its meaning. “无常” or “世事无常,” in my understanding, means that everything in the world is constantly flowing, so change is the natural state of things. Interestingly, it reminds me of the Heisenberg Uncertainty Principle in quantum mechanics.
What happened so far in 2026? So far this year, I have continued trading NVIDIA options, generating approximately 11% return (~37% annualized on a non-compounding basis). From late February to early April, I developed a strong trading cadence — in capital allocation (options vs. stocks), timing of entries and exits, and strike price selection to
I picked up The Art of War again this week — a quiet return to something that helps me feel grounded, especially after being pulled into other people’s energy lately. “胜军先胜而后求战, 败军先战而后求胜.”A winning side secures victory before entering the battle.A losing side fights first, then tries to win. Over the past three weeks, I thought
While reading A Brief History of Time, I came across several concepts that sparked my curiosity — one of the most intriguing being the Twin Paradox. I wanted to summarize what it is and why it matters, in a simple way. The paradox compares how two twins experience time differently when placed under two separate
In the past few weeks, I’ve been learning the basics of CPU, GPU, quantum mechanics—and today I wanted to understand: How does my phone connect to the internet? I always had a few questions in my mind: Here is the simple version of what’s actually happening. 1. Why my phone starts to have internet when
It has been a while since I shared my Nvidia options trading updates. As many of you know, the U.S. stock market in 2025 has been extremely volatile — sharp highs and lows, rapid reversals, and plenty of uncertainty. For option traders, volatility can be both an opportunity and a source of stress. Premiums get