关于【Bitcoin】问题列表

If you’ve spent any time on Crypto Twitter or Reddit, you've probably seen it: a vibrant, rainbow-colored chart curving beautifully upwards with the Bitcoin price plotted over it.

This is the Bitcoin Rainbow Chart. It’s visually appealing, easy to understand, and seems to promise a simple answer to the million-dollar question: "Is now a good time to buy Bitcoin?"

So, what is this chart, and more importantly, can you trust it? Let's dive in and tell the story behind the rainbow.

What is the Bitcoin Rainbow Chart?

Think of the Rainbow Chart as a long-term weather forecast for Bitcoin's price. It's not designed to predict short-term storms, but rather to give you a sense of the overall climate.

My Quest for Free Bitcoin: Separating Fact from Fiction

When I first got into cryptocurrency, I was immediately drawn to the idea of free bitcoin. I mean, who wouldn’t want free money? So, I started searching online, looking for ways to earn bitcoin without investing a dime. Unfortunately, I quickly discovered that many "free bitcoin" offers are too good to be true, leading to scams or wasted time. However, there are legitimate ways to acquire bitcoin without shelling out your hard-earned cash. If you’re also asking, “how to get free bitcoin,” “how to mine bitcoin for free,” or “how to earn free bitcoin,” here's a clear, hype-free guide to legitimate options.

The Truth About Free Bitcoin: Setting Realistic Expectations

First, let's be clear: Nobody is going to give you significant amounts of free bitcoin for nothing. Earning even a small amount takes time and effort. Steer clear of any offers promising "$100 free bitcoin" or similar claims, as these are typically scams.

Legitimate Ways to Earn Bitcoin (or Fractions of It):

• Bitcoin Faucets: These websites give away tiny amounts of bitcoin (called satoshis) in exchange for completing tasks like viewing ads or solving captchas.
• Crypto Rewards Programs: Some apps and websites offer bitcoin rewards for shopping, taking surveys, or watching videos.
• Affiliate Programs: Refer new users to crypto platforms and earn bitcoin commissions.
• Learn & Earn Platforms: Many crypto exchanges offer bitcoin rewards for completing educational courses about different cryptocurrencies.
• Bitcoin Mining (With Caveats): While traditional bitcoin mining requires expensive hardware, cloud mining services or joining mining pools can offer small returns.

How to Mine Bitcoin for Free (or Close to It)

Mining Bitcoin traditionally requires significant investment in specialized hardware and electricity. But there are a few ways to engage in bitcoin mining free, or at least with minimal upfront cost:

• Cloud Mining: Rent computing power from a remote data center and share in the mining rewards.
• Mining Pools: Join a group of miners to combine resources and increase your chances of finding a block.
• CPU Mining: Use your computer’s CPU to mine (though it’s often slow and may not be profitable).

Remember, even with these methods, success isn’t guaranteed, and you'll likely earn small fractions of Bitcoin.

Protecting Yourself From Scams

The promise of "free bitcoin" is a popular lure for scams. Watch out for:

• Ponzi Schemes: High-return investment programs that pay early investors with money from new investors.
• Phishing: Emails or websites that mimic legitimate services to steal your login credentials.
• Malware: Downloads that promise free bitcoin but install malicious software on your device.

Key Takeaways: Be Smart, Be Safe, Be Realistic

• Large quantities of "free bitcoin" are almost always a scam.
• Legitimate methods involve small rewards for specific tasks.
• Cloud mining and mining pools offer a low-cost way to engage in bitcoin mining.
• Always prioritize your security and research before engaging with any offer.

Closing Thought: The Best Way to Get Bitcoin is to Earn It Responsibly

Cryptocurrency continues to be a hot topic in 2025, but not every coin is a winner. While Bitcoin ended 2024 strong, many altcoins faced steep declines, earning the title of the worst cryptocurrency of the year. If you’re wondering what is the worst cryptocurrency or want to know the worst performing cryptocurrency to avoid, this article breaks down the biggest crypto losers of 2024 and what you should watch out for.

The Worst Cryptocurrency Names and Performers of 2024

The crypto market hit a total cap of $3.5 trillion at the start of 2025, showing overall growth. However, many altcoins struggled to keep up, with some losing over 50% of their value. These worst cryptocurrency names often share common problems: weak technology, poor management, and fierce competition.

Here are some of the worst-performing cryptocurrencies in 2024:

Arbitrum (ARB)

Arbitrum, once a promising Layer 2 scaling solution, suffered a massive 57.7% drop in 2024. Increased competition and scalability issues left it struggling to maintain investor confidence. Its failure to innovate quickly made it one of the worst cryptocurrencies last year.

Polygon (MATIC)

Polygon, another Layer 2 solution, fell by nearly 40%. Despite past success, it faced stiff competition and ongoing scalability problems. These challenges pushed Polygon into the worst performing cryptocurrency category for 2024.

Lido DAO (LDO)

Lido DAO, a decentralized staking platform, dropped 37.9% amid rising regulatory uncertainty and fierce competition in the staking sector. These factors made it one of the worst cryptocurrency names to hold last year.

Avalanche (AVAX)

Avalanche’s 23.7% decline was driven by a slowdown in developer activity and difficulties attracting decentralized apps (dApps). Despite its reputation, Avalanche became one of the worst performing cryptocurrencies in 2024.

Why These Cryptos Became the Worst Cryptocurrency

Several factors contributed to these coins’ poor performance:

• Increased competition: Newer, more efficient solutions stole market share.
• Scalability issues: Many struggled to handle growing user demand.
• Regulatory pressure: Uncertainty scared off investors, especially in DeFi and staking.
• Lack of innovation: Failure to adapt quickly led to loss of confidence.

The Worst States for Cryptocurrency Trading

If you’re trading in the U.S., be aware that states like New York and Texas have stricter crypto regulations. These can limit your access to certain coins or exchanges, making it harder to trade safely. Always check your state’s crypto laws before investing.

How to Avoid Investing in the Worst Cryptocurrency

This is perhaps the most common and most important question in the world of modern finance. You've seen the headlines, you've watched the price charts, and you've heard the stories. Now, you're asking yourself: "Should I buy Bitcoin?" It's a question driven by a mix of hope, curiosity, and a healthy dose of fear. As an expert guide, I'm not going to give you a simple yes or no. No honest person can. Anyone who promises you guaranteed returns is selling you something. Instead, I'm going to do something far more valuable: I'm going to walk you through the questions that experienced investors ask themselves before they invest a single dollar.

The Case for "Yes": Why Investors Are Bullish on Bitcoin

There are powerful, logical reasons why many of the world's smartest investors have allocated a portion of their portfolio to Bitcoin. The arguments generally center on three core ideas.

1. Is it "Digital Gold"?

This is the most powerful narrative. The argument is that in a world where governments can print unlimited amounts of money, devaluing currencies, Bitcoin is a "hard asset" with a fixed, unchangeable supply of only 21 million coins. It cannot be created out of thin air. For this reason, many view it as a long-term store of value and a hedge against inflation, much likephysical gold has been for centuries.

2. Does it have the "Network Effect"?

Bitcoin was the first, and it remains the largest, most secure, and most decentralized cryptocurrency by a wide margin. It has the highest name recognition and the most robust infrastructure built around it. In the volatile world of crypto, many see Bitcoin as the "safe haven" asset, the one most likely to endure over the long term due to its powerful network effect.

3. Does the "Halving" Matter?

Approximately every four years, the amount of new Bitcoin created is cut in half in an event called the "halving." This pre-programmed supply shock has historically been followed by a significant bull market. Investors who buy Bitcoin are often betting that this fundamental economic principle of decreasing supply with potentially increasing demand will continue to drive the price up over time.

The Case for "No": The Risks You Must Acknowledge

It would be reckless to consider the upside without looking at the significant risks with clear eyes.

1. Can You Handle the Volatility?

This is non-negotiable. Bitcoin's price is famously volatile. It is not uncommon to see price drops of 20%, 30%, or even over 50% in a bear market. If the thought of your investment being cut in half without you panic-selling keeps you up at night, Bitcoin may not be the right asset for you. You must be prepared for extreme volatility.

2. Are You Prepared for the Responsibility?

Owning Bitcoin directly means you are your own bank. This is both empowering and a huge responsibility. It requires you to take your digital security seriously, managing wallets and private keys. If you lose your private keys, your Bitcoin is gone forever. There is no customer support line to call.

3. What About the Regulatory Uncertainty?

Governments around the world are still deciding how to regulate Bitcoin. Future regulations, while potentially bringing more legitimacy, could also impact its price and usage in ways we can't yet predict. This remains a tangible,long-term risk.

How to Approach It If You Decide to Buy

If you've weighed the pros and cons and have decided that Bitcoin has a place in your portfolio, the next question is how to buy it. For most people, the most prudent approach is Dollar-Cost Averaging (DCA). This means investing a smaller, fixed amount of money on a regular schedule (e.g., $100 every month), regardless of the price. This strategy reduces the risk of investing a large sum at a market top and smooths out your
average entry price over time.

The final step is choosing a secure and reliable venue to make your purchase. You need a platform with a strong security track record, deep liquidity, and a user-friendly interface.

If you're feeling like you "missed" Bitcoin or Shiba Inu in their early days, don’t worry — 2025 is already shaping up to be another massive year in the world of digital assets.

Here’s why:

Why Everyone Is Talking About a Vanguard Crypto ETF

In today’s fast-moving investment world, few debates get people as fired up as the one around cryptocurrency. If you’ve been googling “Vanguard crypto ETF” or searching for “Vanguard Bitcoin ETF,” you’re definitely not alone. With Bitcoin blasting through the $100,000 mark in 2025 and crypto ETFs smashing records for inflows, it feels like everyone is asking the same question: why hasn’t Vanguard, the $10 trillion giant that built its reputation on low-cost index funds, joined the crypto ETF revolution?

Crypto ETFs Are Surging While Vanguard Sits Out

Crypto’s rise over the past few years has been nothing short of meteoric. When the first spot Bitcoin ETFs launched in 2024, few expected them to dominate the way they have. By mid-2025, billions had poured into these funds, with some months seeing Bitcoin ETFs outpace even Vanguard’s own legendary S&P 500 ETF in new inflows. Investors clearly wanted exposure, and they wanted it in the easiest, most regulated way possible. But Vanguard? They’ve stayed firmly on the sidelines.

The Irony of Vanguard’s Hidden Bitcoin Exposure

Even while Vanguard refuses to offer a direct Bitcoin ETF or even allow trading of spot Bitcoin ETFs on its own platform, its funds now hold billions in Bitcoin-linked stocks. MicroStrategy, a company that’s basically a giant Bitcoin vault disguised as a software firm, is a prime example. With over 600,000 BTC on its balance sheet, its stock has skyrocketed, and because MicroStrategy is included in major indexes, Vanguard funds have had no choice but to buy in. Today, Vanguard owns about 8% of the company through its broad index products like the Vanguard Total Stock Market Index and Vanguard Growth ETF.

Why Vanguard Rejects a Bitcoin ETF

The official stance hasn’t changed much. Vanguard’s CEO Salim Ramji has doubled down in interviews throughout 2025. He argues that Vanguard is focused on assets that generate real cash flow—dividends, bond interest, business earnings. To him, Bitcoin’s lack of income makes it more speculation than investment. That may be comforting for conservative investors who fear volatility, but it also feels out of step with where markets are heading.

The Reality of Risks and Rewards in Crypto ETFs

Because let’s face it: crypto ETFs are here, and they’re not going away. They trade on major exchanges with SEC oversight, they’ve attracted billions in capital, and they’re increasingly seen as a legitimate diversification tool. In July 2025 alone, Bitcoin ETFs brought in over $12 billion in new money. For many investors, Bitcoin has become  digital gold,  a hedge against inflation, currency debasement, and market turmoil. Still, the risks are real. Anyone who lived through Bitcoin’s 70% drop in 2022 knows how brutal the ride can be.

Alternatives to a Vanguard Bitcoin ETF

Bitcoin Backed by Gold? The Shocking Truth That Could Change Your Crypto Portfolio Forever!

You've done your research, you understand the risks, and you've decided you want to invest in crypto for the long term. But one paralyzing question remains: "When is the right time to buy?" Do you buy now, hoping the price goes up? Do you wait for a dip that may never come? Trying to "time the market" perfectly is a stressful, and for most people, an impossible game. But what if there was a strategy that removed this guesswork and emotion entirely? There is. It's called Dollar-Cost Averaging (DCA), and it is the single most powerful and stress-free strategy for the long-term crypto investor.

What is Dollar-Cost Averaging? A Simple Definition

Dollar-Cost Averaging is the simple practice of investing a fixed amount of money into an asset at regular intervals, regardless of its price. Instead of making one large, lump-sum investment and hoping you timed it
right, you break that investment down into smaller, consistent purchases over a long period. For example, instead of investing $1,200 all at once, you would invest $100 every month for a year. It's a strategy that prioritizes consistency over timing.

How DCA Turns Volatility into Your Friend

Here is where the true power of DCA is revealed, especially in a volatile market like crypto. Let's look at a simple, three-month example of investing $100 per month into Bitcoin.

• Month 1: The price of Bitcoin is $50,000. Your $100 buys you 0.002 BTC.
• Month 2: The market dips, and the price is now $40,000. Your $100 now buys you 0.0025 BTC.
• Month 3: The market recovers, and the price is $60,000. Your $100 buys you 0.0016 BTC.

After three months, you have invested $300 and acquired a total of 0.0061 BTC. Your average purchase price is approximately $49,180 per Bitcoin. Notice what happened: when the price was low, your fixed investment automatically bought more Bitcoin. When the price was high, it bought less. DCA forces you to buy more when the asset is cheap, which is the exact opposite of what fear and greed often cause investors to do.

The Psychological Benefits of DCA

The mathematical advantage of DCA is powerful, but its psychological benefits are even greater. It is a system designed to remove emotion from your investment decisions.

It eliminates the fear of buying at the top. You know that if the market falls, your next purchase will simply be at a better price.

It prevents the paralysis of waiting for the "perfect" entry. Your entry is every month, on schedule.

It fosters a long-term mindset. DCA is the strategy of an accumulator, not a gambler. It shifts your focus from short-term price swings to the long-term growth of your position.

Who is DCA For?

This strategy is tailor-made for the long-term investor who believes in the fundamental value of an asset like Bitcoin and wants to build a position over months or years. It is not a strategy for short-term traders who are trying to profit from rapid price movements. DCA is a marathon, not a sprint, and it is a key part of answering the broader question: [Should I Buy Bitcoin? A Guide to Making Your Own Decision].

A Bitcoin halving, often called “the halvening,” is a pre-programmed event in Bitcoin’s blockchain protocol that cuts the reward for mining new blocks in half.

This happens approximately every four years, or every 210,000 blocks, to control the supply of new Bitcoins entering circulation.

With a fixed supply cap of 21 million BTC, halvings ensure Bitcoin remains a deflationary asset, making it scarcer over time, think of it like digital gold.

Why does this matter?

Historically, bitcoin halving dates have been followed by significant price surges, sparking excitement among investors.

But it’s not just about price—halvings impact miners, market dynamics, and even the broader crypto ecosystem.

Whether you’re an investor eyeing profits or a curious newbie exploring bitcoin halving dates history, understanding this event is crucial to making informed decisions.

What Is Bitcoin Halving?

Bitcoin halving is a pre-programmed event that occurs every 210,000 blocks (approximately every four years), as outlined by Satoshi Nakamoto, Bitcoin’s pseudonymous creator.

During each halving, the reward granted to miners for validating transactions and securing the network is reduced by half.

This event is central to Bitcoin’s monetary policy, steadily reducing the new BTC supply over time and making Bitcoin increasingly scarce.

Why Does Bitcoin Halving Matter?

1. Supply Control and Scarcity

What it is: Bitcoin halving reduces the reward for mining new blocks by 50%, which effectively cuts the rate at which new bitcoins are introduced into circulation.

Why it matters: This enforces Bitcoin’s scarcity, as the total supply is capped at 21 million BTC. Reduced supply with steady or increasing demand can lead to price increases.

2. Inflation Reduction

Before halving: More bitcoins are mined and added to circulation.

After halving: The rate of new supply drops, reducing the inflation rate of Bitcoin.

Impact: Investors often view this as a deflationary asset, similar to gold.

3. Mining Incentives and Network Security

Miner rewards drop: Since miners earn fewer bitcoins per block, their profitability can decline unless the BTC price rises.

Potential consequences: Some miners may shut down, especially those with high electricity costs.

This could lead to a temporary drop in network hash rate and slower block times until difficulty adjusts.Long-term: More efficient miners remain, potentially making the network more resilient,

Long-term: More efficient miners remain, potentially making the network more resilient.

4. Historical Price Trends

Past halvings (2012, 2016, 2020): Each has been followed by a major bull run in the price of Bitcoin within 12–18 months.

Why: Reduced supply + speculation = price rally.

Bitcoin Halving History

Here is a history of Bitcoin halving events — including their dates, block numbers, and block rewards:

What Is Bitcoin Halving?

Bitcoin halving occurs approximately every 210,000 blocks (roughly every 4 years).

It cuts the block reward for miners in half, reducing the rate at which new Bitcoins are created. This mechanism:

-Controls inflation

-Ensures Bitcoin’s capped supply of 21 million

-Historically precedes major price rallies (but not guaranteed)

What Happens After Each Bitcoin Halving?

Each halving intensifies Bitcoin’s scarcity as fewer new coins are introduced into circulation.

This supply shock, coupled with growing global adoption, tends to drive market cycles historically characterized by price rallies, miner adaptation (as older, less efficient operations retire), and heightened media focus. However, several factors modulate these effects:

-Market Sentiment: Investor confidence can accelerate post-halving rallies.

-Macroeconomic Events: Global crises or liquidity changes can mute or inflate responses.

-Institutional Flows: ETF approval and corporate adoption play expanding roles.

-Mining Economics: Hashrate and energy costs can cause miner shakeouts, impacting network health.

Over time, halving events have less effect on absolute Bitcoin emission but greater psychological and narrative power, continuing to define Bitcoin’s investment story.