MiningDisasterSurvivor

Recently, many people still have some confusion about the concept of the U.S. dollar index. Actually, this thing is quite important for traders, so I’ll share my understanding.
Simply put, the U.S. dollar index is a comprehensive indicator used to measure the strength of the dollar relative to other major currencies. You can think of it as a "thermometer" for the dollar, telling you how hot the dollar is in the global market. It tracks the exchange rate changes of the dollar against six major currencies: the euro, Japanese yen, British pound, Canadian dollar, Swedish krona, and Swiss franc.
Th

I just saw someone ask whether it’s still possible to mine Bitcoin in 2026, and I think this is a question worth discussing seriously.
Put simply, Bitcoin mining means miners use mining machines to record transactions for the Bitcoin network, and the system rewards them with BTC in return. This mechanism has been in place since 2009, but over the years, the way people mine has completely changed.
Do you remember back then? You could mine with a normal computer CPU. Then in 2013, GPU mining emerged, and later, ASIC specialized mining machines took the stage, directly changing the entire landsca

一直有人问我ada是什么意思，其实很简单——ADA全称艾达币，是Cardano区块链的原生代币。说起来有点意思，比特币、以太坊、币安币大家都知道，但很多人其实不了解ADA这个项目，虽然它长期占据市值前十。
先说说背景。Cardano是由以太坊联合创始人查尔斯·霍斯金森和杰瑞米·伍德在2015年创立的研发公司IOHK启动开发的，2018年主网上线。为什么要搞这么一条新公链呢？说白了就是看不惯前面的项目。比特币网络拥堵、gas费贵得离谱，以太坊虽然改进了但还是有各种问题，而且不同平台互不兼容。所以Cardano决定从第三代公链的角度重新设计。
技术层面ADA有几个明显优势。首先采用了Ouroboros这种权益证明机制，比比特币的工作量证明节能得多。架构上用两个独立层来保证安全和性能，处理速度能达到250 TPS，远超比特币的7 TPS和以太坊的30 TPS。另外还通过侧链和智能合约技术解决了跨链互通和分叉问题，这在当时还是挺创新的思路。
团队配置也比较独特，由IOHK负责技术开发、EMURGO监督项目进展和融资、Foundation对外合作，分工清晰实力强。这种模式让ADA能够稳定发展，经历过熊市还能保持韧性，市值排名也一直不低。
不过说实话，ADA现在的生态建设还是个短板。根据最近的数据，Cardano的TVL只有几亿美元规模，在所有公链中排名不算靠前，远不如以太坊。生态项目数量、活

Recently, I’ve seen many people in the community asking about cold wallets, and I think it’s really necessary to have a good discussion on this topic.
To be honest, more and more people are using wallets now, but most are still a bit unfamiliar with cold wallets. Many interact on the chain either for convenience with hot wallets or because of poor private key management, which eventually leads to assets being stolen or lost. That’s also why the demand for cold wallets has recently surged.
A cold wallet is basically storing your private key on an offline device, usually a hardware wallet. Its c

Recently, I saw someone in the community asking how to identify investment scams, which reminded me of an old topic—Ponzi schemes. These types of scams are truly harmful, and I think it's necessary to have a good discussion about this topic with everyone.
The name "Ponzi scheme" comes from an Italian con artist, Charles Ponzi. In 1903, he illegally entered the United States, worked various jobs, and even served time in Canada for forgery. Later, he discovered that finance was a quick way to make money. In 1919, just after World War I ended, the global economy was in chaos, and Ponzi took advan

Newcomers to the stock market are most easily confused by various terminology; I was initially clueless myself. Today, I will organize for everyone the most common stock market terms, so you don't have to ask around like I did.
Let's start with the trading aspect. In the stock market, there are concepts like retail investors, big players, and market makers, which are actually categorized by capital size and influence. Retail investors are ordinary investors like us, with smaller funds and less say. Big players and market makers are institutions that operate with large funds and can directly in

Recently, many beginners want to enter the U.S. stock market but don’t know where to start. In reality, the question of how to buy U.S. stocks isn’t as complicated as you might think. Today, I’ll talk about my observations from a practical perspective.
First, it’s important to be clear about one point: when opening a U.S. stock account, you’ll face two account options. A cash account is the most basic—there’s no overdrawing and no short-selling. Risk is relatively more controllable and it’s suitable for most people. A margin account, on the other hand, allows you to borrow securities, use leve

Recently, I have been paying close attention to the trend of the Australian dollar, and I find that the story behind this currency pair is quite complex. As the fifth most traded currency globally, the AUD has high liquidity and low spreads, which should make it very attractive to investors, but its performance over the years has been less than ideal.
Why is the AUD becoming weaker? Simply put, Australia's economy is highly dependent on exports of bulk commodities like iron ore, coal, and copper, making it a typical commodity currency. When global raw material prices fluctuate, the AUD exchang

Recently, many people have been discussing rolling positions, and I’ve found that quite a few misunderstand this concept. Simply put, rolling positions means gradually increasing your position size in a trending market to amplify profits, while also reducing leverage ratio as profits grow, ultimately achieving a process where profits grow like a rolling snowball. It sounds very attractive, but in practice, it requires strong discipline.
Let me give a real example to illustrate. Suppose you have 100k yuan in capital, trading a certain cryptocurrency, with an initial price of 10 yuan, using 20x

Recently, I’ve noticed more and more people around me want to enter the crypto world, but most of them are actually completely confused and don’t know where to start. Since the topic of getting started in crypto is so popular, I’ve put together some of my own understanding here—maybe it can help beginners who want to learn about digital currency trading.
First, let’s talk about what it means to trade crypto. In fact, it’s very simple: buy low and sell high to profit from the price difference. It’s the same logic as stock trading or real estate speculation. The only difference is that the targe

I just saw a very eye-opening comparison: depositing $500k in the bank takes 5 minutes, but a single U盗 scam can be gone in less than a second. Over the past two years, scammers in China have upgraded their tactics rapidly, shifting from traditional telecom fraud directly into the virtual currency space. I think it’s necessary to explain the full U盗 scam industry chain to everyone.
What is U盗? Simply put, scammers use various methods to steal or transfer USDT from your digital wallet. Why are they so obsessed with U盗 scams? The reason is quite practical—virtual currencies are not legally prote

Recently, I’ve been pondering a question: Can beginners really make money when entering the cryptocurrency market? Instead of obsessing over this question, it’s better to look at what history has to say.
The price movements of Bitcoin clearly illustrate the point. From a few cents in 2011 to over $77k now, it has experienced countless crashes and rebounds, but the long-term trend has never disappointed. Ethereum went from just over $1 to a peak of more than $4,600, and Solana rose from fractions of a dollar to over $87—these numbers represent real wealth transfers behind them. Of course, some

Recently, many beginners have been asking me how to get started with contract trading, so I might as well write down my understanding. Actually, crypto contracts are essentially a type of derivative trading; you don't need to actually buy coins, just predict the price movement, and use margin to leverage your trades. The advantage of this is that you can control a large position with a small amount of money, but the downside is that the risk is also amplified.
Let's first talk about the two main types of contracts. Perpetual contracts have no expiration date; you can hold them as long as you w

Recently, there’s been an interesting phenomenon; the trend of the RMB exchange rate is really worth paying attention to. From last year to this year, the performance of the US dollar against the RMB has shown a clear shift, and the previous three-year depreciation trend seems to be reversing.
Speaking of which, the performance of the RMB in 2025 remains quite resilient. In the first half of the year, it was indeed pressured by tariffs and a strengthening dollar, with offshore RMB once falling below 7.4 and even hitting a new low since 2015. But in the second half of the year, as China-US rela

Last week, major central banks all signaled a hawkish stance, especially the synchronized shift by the European Central Bank and the Bank of England, which gave me new thoughts on the euro exchange rate trend. The euro/dollar rose by 1.34%, and the British pound also increased by 0.89%, indicating that non-dollar currencies are rebounding.
However, how far this rebound can go still depends on the Middle East situation. The escalation of the US-Iran conflict directly pushed up oil prices, putting significant pressure on energy-importing countries like Japan and Europe. Although the hawkish sign

Anyone paying attention to the gold market should be able to feel the heat of this wave of trend. Since 2025, gold prices have indeed surged fiercely, with an annual increase of over 60%, setting many years' new highs. The gold prices in Malaysia have also risen along with the international trend, and many people are asking how much Malaysian 916 gold costs per gram and how to track real-time price movements.
Speaking of local gold prices, recent fluctuations have been quite significant. 999 pure gold has risen from last year's levels to nearly 750 to 800 ringgit per gram, and the 916 gold pri

There have been some interesting changes in the foreign exchange market recently. Last week, after the ceasefire agreement between the US and Iran was announced, the euro surged by 1.78%, the US dollar index fell by 1.49%, and all non-dollar currencies rose, with the Australian dollar leading the gains at 2.47%, and the British pound also rising by 2.04%.
First, let's talk about the euro's recent rally. EUR/USD rose for five consecutive days, mainly because the ceasefire expectations eased risk aversion. But there's a detail worth noting — the US-Iran negotiations didn't actually produce any r

The recent moves by the Bank of Japan have left people a bit baffled. On April 28, it kept interest rates unchanged at 0.75%, which was broadly in line with market expectations—but the key point was the wording used by Governor Ueda at the press conference. He said that if risks of upward inflation or a downturn in the economy are limited, they could consider raising rates, which sounds rather hawkish, but the market doesn’t seem to have bought it.
At the time, the USD/JPY briefly fell below 159, suggesting that the yen exchange rate might be turning around. So what happened? Governor Ueda did