RektDetective

Recently, I saw someone in the community asking what closing a position actually means, so I thought I might as well organize this topic, because really, many beginners don't understand it clearly.
In simple terms, closing a position means ending the trade you have already opened. But there's a common misconception here: closing a position doesn't necessarily mean selling. If you're going long and buying, then closing is selling. But if you're shorting and selling, then closing means buying back. This is a confusion many people have when they first start.
Closing a position roughly falls into

I've been thinking about an interesting phenomenon recently. When we talk about the wealthiest countries, most people's first reaction is the United States, but in reality, this concept needs to be broken down further.
The U.S. is indeed the world's largest economy, that's true. But if we look at GDP per capita, the situation is completely different. Places like Luxembourg, Singapore, and Macau have per capita wealth levels that actually far surpass the U.S. For example, based on GDP per capita, Luxembourg reaches $154,910, Singapore $153,610, while the U.S. only has $89,680, ranking tenth.
Th

Recently chatting in the circle, I found that many people are considering entering Web3 jobs. Indeed, remote work, high salaries, free travel... Just thinking about it is exciting. Writing code at the foot of snowy mountains, holding meetings by Erhai Lake—these dreams seem truly achievable in Web3.
But I must be honest, behind this freedom lie many pitfalls. Many only see the glamorous exterior of high pay and remote work, ignoring the two big mountains of legal risks and lack of protections.
Let's start with the most practical issue. Job hunting in Web3 is completely different from tradition

Recently, I’ve been looking into DeFi lending and borrowing, and I’ve noticed a pretty interesting phenomenon.
Traditional DeFi protocols have always had a rigid logic: want to borrow money? No problem, but you need to lock in $150 to borrow $100. Collateral ratios often range from 120% to 170%, which indeed protects lenders but also keeps most people out. The people who can actually use DeFi lending are basically those with substantial capital. In contrast, traditional finance has long been playing the unsecured system with credit cards and personal loans, but Web3 has yet to make a breakthro

I recently came across an interesting topic that made me think of a detail many people overlook: why is our currency called "CNY" internationally instead of "RMB"? This actually reflects an intriguing evolution of our currency from ancient times to the present.
Speaking of which, China's monetary history is very long. From the gold and silver of the Han Dynasty, to the Kaiyuan Tongbao of the Tang Dynasty, and then to the use of paper money replacing coinage starting in the Song Dynasty, each era has its own story. During the Qing Dynasty, there were even several currency crises, leading to con

Recently, while studying technical analysis, I found that many people actually have misconceptions about this set of tools. To be honest, technical analysis is often criticized as "storytelling with charts," but the problem isn't with the tools themselves; it's whether the user truly understands the underlying logic.
Simply put, technical analysis involves judging market direction through price movements. When prices continuously rise or fall, we call it a "trend"; conversely, when prices fluctuate within a certain range, it's called "consolidation." It's that simple, and can be summarized int

Someone asked me before why I like to use EMA to judge trends. Today, I'll simply explain how this indicator works because compared to the simple moving average (SMA), EMA provides much more help for my trading.
First, let's talk about the difference between EMA and SMA. SMA is the simple moving average, which sums up the prices over a period and divides by the number of data points, giving each data point equal weight. But EMA is a weighted moving average, where more recent prices are more important, and earlier prices have lower weights. The benefit of this is that EMA can respond more sensi

Recently, I’ve been thinking about an interesting question—on the release day of U.S. non-farm employment data, why does the crypto market move with such intense volatility?
Many people think that NFP reports only affect the forex market and stocks, but that’s not the case. I’ve noticed that whenever employment data comes out, Bitcoin and Ethereum both show a clear, coordinated reaction. Right now, BTC is above $78k and ETH is above $2.3k, but the price swings before and after the NFP release are often quite surprising.
The core logic is this: strong employment data boosts the U.S. dollar inde

Recently, I saw someone in the community asking what the divergence rate is, and it reminded me that when I first learned technical analysis, I also got stuck on this indicator. So today, I want to share my understanding of it.
Simply put, divergence means deviation. The divergence rate indicator is a tool used to see how far the price deviates from the moving average. Think about it, the price can't stay right on the moving average every day; the market naturally fluctuates. But the key point is, when the price is too far from the moving average, it usually reverts, and that’s the core logic

Recently, I've been thinking about a question many people ask: What are Halal and Haram? These two concepts are actually at the core of Islamic faith, directly influencing every decision in a Muslim's daily life.
In simple terms, Halal refers to things that are permitted, lawful, and pure, while Haram refers to things that are forbidden and harmful. But this distinction isn't just about food; it covers all aspects of life.
You can earn money through honest work, speak the truth, and treat others kindly — these all fall under the category of Halal. Conversely, alcohol, interest-based transactio

Recently, I’ve been paying attention to something quite interesting. While the whole world is watching the confrontation between the United States and Iran, Turkish President Erdoğan suddenly stepped forward. Not only did he not support the United States—he publicly condemned the US for its attacks on Iran, saying this threatens peace in the Middle East. Many people found it surprising, but I think the logic behind it is actually very clear.
Turkey is a member of NATO, so in theory it should stand with the United States. But Erdoğan doesn’t see it that way—he has his own agenda. Put simply, Tu

Recently, I’ve seen many beginners asking whether to use full position or isolated margin. Instead of getting stuck in the debate, it’s better to first understand the logic behind it.
Trading is like fighting a war—tactical choices determine life or death. Full position and isolated margin are fundamentally two different risk exposure modes. There is no absolute “better” or “worse,” only what fits you.
Full position means putting all your chips together: win together, lose together. It looks like you get higher capital utilization, and you can even endure short-term fluctuations for longer. Bu

Recently, I’ve been observing many traders’ loss situations and discovered a pattern: most people simply don’t understand how to calculate their profit and loss ratio. This isn’t a small issue; it directly determines whether you can survive in the market.
Let me start with a phenomenon. I’ve seen too many people who spend every day placing trades, making a little profit and then running, or holding on stubbornly when they lose. As a result, over a year, they’ve made quite a few trades, but their returns are always negative. They’ve never seriously calculated one key thing: what is my win rate?

I’ve recently been researching how to start mining, and I found that there are so many mining programs to choose from. I used to think you definitely had to buy extremely expensive hardware to mine Bitcoin, but later I realized there are now various mining programs that allow ordinary people to get involved too.
Based on my research, there are currently mainly three ways to mine. Cloud mining is the easiest—rent computing power from remote data centers, without having to buy equipment yourself. Pool mining combines computing power together, so even if your computing power isn’t that strong, yo

Recently, some friends have asked me how to interpret candlestick charts, so I decided to organize some of my insights over the years. To be honest, back in 1990 when our domestic stock market opened, we started using candlestick charts directly. But after all these years, most people’s understanding of candlesticks still stays at the Japanese theory level, which is just scattered statistics of single, double, and multiple candlesticks, without forming a systematic, complete model.
Initially, I was the same—looking at various indicators, studying candlestick combinations, thinking that masteri

Recently, I’ve seen many beginners in the community asking how to use RSI, so I decided to organize my years of experience on the topic. Honestly, RSI looks simple, but to use it well requires avoiding quite a few pitfalls.
First, let’s talk about the most common traps. I’ve seen too many people rush to short when RSI exceeds 70, only to get repeatedly chopped up in strong trending markets. In a strong trend, RSI can often spike to 80, 90, or even higher. If you still trade based on textbook overbought signals at that point, you’re just waiting to lose money. Another common mistake is confusio

Recently studying the role of market makers, I found that this concept actually has a very long history. As early as the 18th century, the London Stock Exchange already had market makers operating. Their job was to act as a bridge between buyers and sellers, providing liquidity. In modern times, the NYSE calls them Specialists, while HKEX refers to them as designated dealers, but essentially they are the same — creating markets and providing quotes.
Market makers can be large institutions, individual traders, or even exchanges themselves sometimes participate in market making. But honestly, in

I’ve discovered a very interesting phenomenon: less than 10% of retail investors can accurately catch the bottom, and the key difference lies in whether they know how to identify support and resistance levels.
I’ve also been observing this issue recently. Many people buy coins purely based on intuition, resulting in being trapped at high prices or selling at the floor. The traders who actually make money, their secret is quite simple—they know how to draw support lines.
Let’s start with the basics. When the price drops to a certain level, buyers feel it’s profitable and rush in to buy, causing

Recently, I've seen many discussions about the security of cold wallets, and I’ve also organized some thoughts. To be honest, for those who take their crypto assets seriously, a cold wallet is truly a worthwhile option to consider.
First, the basics: a cold wallet is a method of storing cryptocurrencies completely offline. Its biggest advantage is that it’s not connected to the internet, so hackers cannot attack remotely. In comparison, hot wallets need to be online to be used, so their security is naturally lower. I think this distinction is key to understanding cold wallets.
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