SellTheBounce

Recently, I've been experimenting again with virtual phone numbers for receiving SMS, and I found that this method really saves effort. Previously, I had to deal with verification codes a lot when testing interfaces and registering on some overseas websites—sometimes the codes wouldn't arrive, or there would be a half-day delay. It wasn't until later that I realized there are dedicated SMS receiving platforms you can use.
Basically, virtual phone numbers for receiving SMS are just renting a temporary number—no need to buy a new SIM card, and no worries about privacy leaks. I've tried several p

Recently, many beginners have been asking what OI means. In fact, this indicator is really crucial in futures and derivatives trading. Today, I want to share my understanding.
OI stands for open interest, simply the total number of open contracts that haven't been closed yet. You might ask, what's the difference between this and trading volume? The key difference is that trading volume shows how many trades occurred over a period of time, while OI indicates how many open positions are still active. Using both indicators together allows us to get a clearer picture of what the market is doing.
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Recently, I encountered scenarios requiring temporary verification codes again, so I dug out a few Chinese SMS verification platforms I tested before and summarized some pitfalls.
Honestly, virtual numbers are really convenient, especially when testing APIs or registering overseas accounts, saving the hassle of buying a SIM card. The key is that now there are more Chinese SMS verification platforms to choose from, but their quality varies greatly—some can't receive messages at all, others have delays of half a day, which is quite frustrating.
The more reliable ones I've used include: SMS-Activ

Recently, someone asked me how to choose a wallet, and honestly, that's a very good question. Because if you choose incorrectly, your asset security could really be at risk.
Let me start with the conclusion: where you put your money depends on how you use it. Different cryptocurrency wallets are suitable for different scenarios, and there is no such thing as an absolute "safest."
First, let's talk about exchange wallets. If you frequently trade mainstream coins like USDT or Bitcoin, an exchange wallet is very convenient. Deposits and withdrawals are quick, there are many trading pairs, and fee

Recently, many friends have asked me how to make money with cryptocurrencies, so today I’ll give a systematic overview of this topic. Actually, whether you're a beginner or have some experience, as long as you master the right methods, there are real opportunities in this market by 2025.
Let's start with the basics—cryptocurrencies are essentially digital assets protected by encryption technology to secure your funds. Their biggest feature is decentralization, with no banks or governments involved. That’s why so many people are optimistic about them.
When it comes to how to make money with cry

Recently, I’ve found that many people are still keeping large assets on exchanges. Honestly, this risk is truly huge. I want to talk about cold wallets, because they are really a must-have for protecting your crypto assets.
First, let’s talk about why you need a cold wallet. If your coins only exist on an exchange, then they’re not really yours—this line may sound hurtful, but it’s indeed the fact. Exchanges may be targeted by hackers, may have security vulnerabilities, and the platform itself might even crash. Cold wallets are different: they are offline storage, with no internet connection,

Recently revisited Mark Minervini's trading approach, and I have to admit, this guy is truly a trading genius. He has won the US Trading Championship twice, with one year achieving a 155% return and another 334.8%. Such achievements are top-tier regardless of the era. Even more impressive is that his worst year in his entire trading career still yielded a 128% return, with only one quarter showing a loss, and that loss was less than 1% of the principal. Such results are not achieved by luck.
Mark Minervini is never secretive and has always shared his trading system. He says he has used the sam

I recently saw news about Huang Xuncai's visit to Japan, and his diplomatic statements are quite interesting. Singapore, as a small country, is geographically caught in the middle of great power rivalries. Huang Xuncai's visit to Japan this time perfectly illustrates how Singapore survives in such a situation. He clearly stated that Singapore will not choose sides or favor one over the other. It sounds simple, but actually doing it is not easy. Think about it—China, the United States, and Japan are three major powers. Singapore needs to maintain good relations with all of them; leaning toward

I just saw the Zcash Foundation's 2026 roadmap, and this strategic adjustment is quite noteworthy.
First, regarding Zebra, as the only consensus node implementation, they will focus on performance optimization and promote the adoption of NU7 ZIP. More importantly, the Z3 technology stack will gradually replace zcashd, which means significant changes to the infrastructure of the entire ecosystem.
Additionally, progress on the FROST threshold signature scheme is also promising. They plan to release version 3, finalize the ZIP-312 protocol standard, and introduce a distributed key generation prot

The Real Game of the Crypto World in 2026
Recently, I’ve been pondering a question: when the US stock market’s P/E ratio hits 40.5, and the total market capitalization to GDP ratio reaches 230%, how should we view cryptocurrencies?
These figures far exceed the levels seen before the 1929 crash. Even more strangely, the Nasdaq 100 index has risen 141%, while the M2 money supply has only grown 5%—meaning stock prices are increasing 28 times faster than the new money entering the system. Some say this is a valuation reshaping driven by the AI revolution, but I believe it’s more likely a macro bub

The recent market trend in the crypto space is quite interesting. I’ve looked at the movements of Bitcoin and Ethereum, and they both seem to be in a critical consolidation phase.
Bitcoin is currently hovering around 66,500, with daily candles closing mostly bearish these days, but the lower shadows are quite long, indicating there are still some buyers stepping in at lower levels. On the 2-hour chart, the volatility is gradually narrowing, which looks like something is brewing. Technically, although the MACD is still in a bearish state, the green bars are shrinking, suggesting a short-term re

Recently, this Spring Festival has really been turbulent for Silicon Valley. Not only are Chinese internet giants pouring money into red envelope battles, but American tech companies across the Pacific are also engaged in fierce marketing wars during the Super Bowl, even spending up to $10 million for a 30-second ad.
Even more outrageous is Google's move. First, they announced an annual capital expenditure plan of $185 billion to support AI infrastructure, and a week later, they issued $20 billion in bonds, including a 100-year bond. This is the first time in nearly 30 years that a tech giant

I just saw that South Africa's latest fuel price increase officially took effect today. This wave of price hikes seems likely to trigger a series of ripple effects throughout the economy.
The logic behind it is quite straightforward. South Africa's fuel pricing mechanism is linked to international crude oil benchmarks and exchange rates. The Department of Mineral Resources and Energy adjusts prices monthly based on Brent crude oil trends and the rand's performance against the US dollar. Recently, global oil prices have risen, coupled with the rand's depreciation, resulting in both gasoline and

I recently looked at Bitcoin's price movement, rebounding from $60,000 to over $68,580. It’s definitely a significant increase. However, a closer look at the technicals suggests that this rebound may be hiding the risk of a bull trap.
The price is currently stuck near the upper boundary of the trading channel and the Fibonacci resistance level, with quite a bit of resistance above. What’s more concerning is that although the rebound looks strong, the trading volume is actually shrinking, which is usually a bad sign. Healthy upward movements should be accompanied by volume confirmation; the cur