OldLeekNewSickle

Recently, while studying the Bitcoin mining mechanism, I came across a detail that’s especially interesting. Many people know that miners mine, but few truly understand the concept of nonce. I think it’s necessary to talk about this in a proper way.
Simply put, a nonce is a special number that miners keep adjusting during the mining process. Its full meaning is “a number used only once.” It’s not just an arbitrary value—it is the core of the proof-of-work mechanism. What miners need to do is to keep changing the nonce value until they finally find a hash value that satisfies the difficulty req

Recently, while playing with DeFi, I found that many beginners are still a bit confused about liquidity pool tokens (the commonly called LP tokens). Actually, these things are simply the "receipts" given by the exchange when you provide liquidity.
In simple terms, when you deposit a pair of tokens (like BNB and CAKE) on platforms like Uniswap or PancakeSwap, the system will give you an LP token as a certificate. This "receipt" represents your share in the liquidity pool. With it, you can withdraw your principal and earned fees at any time. Without this token, you can't prove that those assets

Recently, many people have asked me how to interpret the monthly KD indicator, and I’ve found that many traders actually misunderstand this issue. Let me start with the conclusion: a golden cross on the monthly KD is indeed valuable, but it’s not a signal to go all-in immediately.
Let me begin with a common pitfall. Many beginners see a golden cross on the daily KD and rush in, only to get washed out by the market. Why? Because they haven’t clarified one thing: the KD indicator reflects momentum shifts, not trend reversals. The K line is the fast line, the D line is the slow line. When K cross

Recently in crypto technical analysis, the W-shaped pattern is one of the most commonly seen bottom formations and also one of the easiest opportunities to catch the bottom.
Simply put, the W bottom is when the price drops twice in succession, with two roughly equal lows, forming a W-shaped trend. The highest point of the first rebound connects to form a horizontal line called the neckline, and the line connecting the two lows is the support line. It looks simple, but to truly utilize this pattern well, details are key.
First, pay attention to the time interval. I’ve seen too many people mista

I've been using RSI for short-term trading, and recently I wanted to organize the logic of this indicator to share with everyone. Honestly, RSI looks simple, but to use it well, you still need to put in some effort.
First, let's talk about what RSI is. The Relative Strength Index measures the strength of price movements over a period using values between 0 and 100. Simply put, if the upward momentum is strong, the price tends to go up; if the downward momentum is strong, it tends to go down. The most straightforward way to use this indicator is to look at overbought and oversold levels: RSI ab

Recently, I’ve been looking at global economic data and noticed a pretty interesting phenomenon. Many people mention the wealthiest countries, and their first thought is the United States because its overall economic size is indeed the largest. But if you look at the ranking by per capita GDP, the situation is completely different.
In fact, there are a bunch of small countries that far outpace the U.S. on this metric. Places like Luxembourg, Singapore, Ireland, and Qatar all have per capita GDPs exceeding that of the United States. The U.S. ranks only tenth in this list, with a per capita GDP

Recently studying technical analysis, I found that many people seem to have some misunderstandings about the MACD indicator. Today I want to share my understanding with everyone.
MACD stands for Moving Average Convergence Divergence, and in Chinese, it is called Smooth Moving Average with Different Convergences. Honestly, when I first saw this name, I was a bit confused, but after understanding its three core components, it all became clear. MACD mainly consists of three parts: the fast line DIF, the slow line DEA, and the histogram, each with its own function. Together, they help us capture p

Lately I've been thinking about a question: why do some people never make money in cryptocurrency trading? I realize that many people simply don't develop the habit of setting take-profit and stop-loss orders.
Honestly, the concepts of take-profit and stop-loss seem simple, but they can truly change your trading results. Take-profit means decisively exiting when you're making money, not being greedy and waiting for a bigger rally. Stop-loss is about facing reality—cutting losses at a certain point to prevent losing even more. These two seemingly opposite actions are actually based on the same

I’ve been studying a pretty interesting concept lately called MEV (Maximum Extractable Value), which was previously also known as Miner Extractable Value. Simply put, it’s a strategy where block producers profit by adjusting the transaction order or adding/removing transactions.
Why is this a big deal? Because transactions on the blockchain are not arranged randomly. When block producers package transactions, they have the right to decide who goes first and who goes later, which gives them opportunities to profit from it. The Ethereum ecosystem is especially prone to this, because DeFi transac

Recently, a student asked me a question: why do I emphasize the importance of the profit-loss ratio so much? Actually, it's very simple, because it determines whether you can achieve consistent profits.
Let's clarify the concept first. The profit-loss ratio is the ratio of your profit to your loss each time. Suppose you have $100 in your wallet, and you only risk 10% each trade. When you make 10 trades, if your win rate is only 10% and your profit-loss ratio is 1:1, that means you win once and lose nine times, ending up losing $80. But if you can improve your profit-loss ratio to 1:2, the situ

There is a figure in the crypto world who has almost become a legend—no one knows who he is, but he changed the entire financial world with a single PDF. And then he disappeared. This person is called Satoshi Nakamoto.
I recently thought of this story again. Because every time I look at Bitcoin’s price, I think of this mysterious founder.
On October 31, 2008, a person named Satoshi Nakamoto posted a paper on the cryptography mailing list: "Bitcoin: A Peer-to-Peer Electronic Cash System." It was only 9 pages. Two months later, on January 3, 2009, the Bitcoin network went live. Block 0 was mined

Recently, while studying harmonic trading, I found that this approach does have a threshold. But once you master it, your ability to identify trading opportunities can be significantly improved. I’d like to share my learning notes with everyone.
When it comes to harmonic trading patterns, there are commonly about eight types. Among them, ABCD is the most basic—an arrangement of three waves and four points. BC usually retraces to the 0.618 level of AB, and the length of CD is equal to AB. This pattern is the easiest to get started with, and many beginners begin here.
Next is the Bat pattern, de

Recently, a friend asked me why there are two types of Renminbi: CNY and CNH.
Actually, this reflects an interesting phenomenon in China's financial markets.
In simple terms, CNY is onshore Renminbi, the version traded within mainland China.
It is tightly controlled by the central bank, with exchange rate fluctuations limited within ±2%, and only domestic banks, enterprises, and individuals can participate.
Want to exchange currency? Each person is only allowed to convert up to $50k USD per year, which is a strict regulation.
CNY is mainly used for domestic payments, trade, and inves

Recently, many mainland investors have been asking whether virtual currencies are legal in Hong Kong. This is indeed a question worth discussing thoroughly. Hong Kong's attitude towards virtual assets has become much more open in recent years, especially after the SFC officially allowed retail investors to invest in virtual assets through licensed platforms in 2023. Since then, this market has become much clearer.
I notice that many people still have doubts about the legality of cryptocurrencies in Hong Kong, mainly worried about cross-border capital flows. In fact, trading and withdrawing vir

Someone recently asked me, why does Bitcoin fluctuate so much? Indeed, from over a year ago when it rose from $15,000 to over $73,000, the magnitude of this increase is truly astonishing. But just as astonishing is how quickly it can fall. To understand the logic behind this, it’s actually not difficult.
First, it’s important to understand the changes on the supply side. Bitcoin’s total supply is fixed at 21 million coins, which is the core reason for its scarcity. In the past few years, 900 coins entered the market daily, but since mid-last year, the halving mechanism was activated, reducing

While reviewing some trading records recently, I suddenly realized that many people’s understanding of candlestick patterns is still at a very shallow level. As it happens, our domestic stock market started using candlesticks directly as far back as when it opened in 1990. But over all these years, the study of candlestick patterns has basically been built on Japanese foundations, and many people only look at single-candlestick setups or two-candlestick patterns—there’s no systematic understanding at all.
Actually, candlestick charts originated from rice market trading during Japan’s Tokugawa

Recently, I’ve been pondering a question: what exactly is Web 4.0? To be honest, many people are still stuck on their understanding of Web 3.0, but the industry has already begun sketching the blueprint for the next generation of the internet.
Simply put, Web 4.0 is an integration of AI, the Internet of Things, and Extended Reality on top of a decentralized foundation. Imagine a future internet that’s not just about information exchange, but truly intelligent and immersive experiences. AI will become the neural center of the network, helping you make decisions; XR technology will allow you to

Recently, a friend asked me about cold wallets, and I realized that many people still have a somewhat vague understanding of this concept. Simply put, a cold wallet is a way to store cryptocurrencies completely offline. It might sound a bit complicated, but the principle is quite straightforward.
The biggest feature of a cold wallet is that it does not connect to the internet, which means your private keys are never exposed to hackers. Imagine if you carry a large amount of cash in your wallet every day—that's similar to storing cryptocurrencies in a hot wallet (an online wallet), which is qui

Recently, many beginners have asked me how to tell if a stock is being manipulated by major players. The simplest way is to look at the turnover rate. Honestly, many people have been trading stocks for years, but their understanding of the turnover rate is still biased. Today, I want to share my insights with everyone.
First, let's start with the basics: what is the turnover rate? Simply put, it’s the frequency of buying and selling stocks, reflecting how active the stock is. Think about it—can a stock that’s traded every day be the same as one that’s hardly traded? Of course not.
I’ve noticed

Recently, I saw someone discussing the topic of Sun Ge again, saying that the market started to decline on the day he livestreamed eating an exorbitant amount of bananas. This is actually no coincidence; the market has long since figured out his tricks.
Speaking of the nickname Sun Ge, it has to start with his rise to fame. This guy is indeed exceptionally clever, born in 1990, and was admitted to Peking University through special admission in 2007, later studying abroad in the United States. In 2012, he bought a large amount of Bitcoin, earning 10 million yuan in less than a year. But what tr