Why Bitcoin Flourishes
Bitcoin has achieved significant global growth and popularity since its inception, thanks to its unique design and market narrative. Its flourishing primarily stems from the following core characteristics:
- Decentralization and Self-Custody: Bitcoin is a peer-to-peer digital cash system that does not rely on any central authority or government for issuance and management. This decentralized nature grants users complete control over their assets, without the need for traditional financial intermediaries like banks, making it particularly attractive to users in regions with unstable financial systems or restricted property rights.
- Scarcity and Inflation Resistance: Bitcoin's total supply is hard-capped at 21 million coins. This fixed scarcity often leads to it being compared to "digital gold" and viewed as an effective tool against fiat currency inflation. The "halving" event, occurring approximately every four years, halves the rate at which new Bitcoins are produced, further reinforcing its scarcity and historically often accompanied by price increases. The next halving is expected around 2028.
- Low-Cost Global Payments and Efficiency: The Bitcoin network supports low-cost cross-border payments, eliminating the high bank fees and lengthy processing times associated with traditional international remittances. Its 24/7 operation makes transactions efficient and flexible, offering a new option for global commerce and personal transfers.
- Security and Transparency: Bitcoin transactions, based on blockchain technology, ensure security through robust cryptographic algorithms. All transaction records are publicly and transparently recorded on the blockchain, immutable and irreversible, effectively preventing fraud.
- Financial Inclusion and Accessibility: Anyone with an internet connection can freely participate in the Bitcoin network without requiring permission from traditional financial institutions. This provides billions of people worldwide, excluded from the traditional banking system, with an opportunity to participate in the digital economy.
- Market Narrative and Institutional Adoption: Bitcoin's innovative story has sparked widespread entrepreneurial enthusiasm and investment interest. While initially driven by individual investors, hedge funds, public companies, and even some governments now hold Bitcoin, increasing its liquidity and legitimacy. For example, Hong Kong successfully listed spot Bitcoin and Ethereum ETFs in 2024, signaling increased acceptance in mainstream financial markets. As of September 15, 2026, Bitcoin's price is approximately 77,607 US dollars, with a market capitalization of about 1.57 trillion US dollars and a 24-hour spot trading volume of approximately 3.335 billion US dollars, demonstrating its strong market activity. Users can view Bitcoin's real-time quotes and trends on market platforms like Svmuu.
Why Bitcoin Struggles to Replace the US Dollar
Despite Bitcoin's strong vitality, replacing the US dollar as the dominant global currency still faces multiple fundamental challenges:
- Extreme Price Volatility: Bitcoin's price is highly volatile, with intraday fluctuations often reaching 5% or more. This instability severely undermines its function as a stable store of value and unit of account. For merchants, it's difficult to accept a currency with such volatile value as a primary means of payment; for businesses, it's hard to predict future inflation or deflation, disrupting production plans and financial management.
- Fixed Money Supply and Deflationary Risk: While Bitcoin's fixed supply of 21 million coins offers an anti-inflationary advantage, as a global currency, its fixed nature could lead to widespread deflation. In a deflationary environment, as prices of goods and services fall relative to Bitcoin, it would increase the real debt burden for businesses and individuals, suppress consumption and investment, and negatively impact economic development. Economists generally agree that a flexible money supply is crucial for maintaining economic stability and avoiding deflation.
- Limited Transaction Processing Capacity: The underlying Bitcoin blockchain can only process about 7 transactions per second, far less than the tens of thousands of transactions per second handled by traditional payment systems like Visa or Mastercard. This limited transaction processing capacity makes it difficult to meet the demands of large-scale daily global payments, requiring reliance on second-layer solutions like the Lightning Network and centralized intermediaries to improve efficiency, which to some extent contradicts the original decentralized ethos.
- Government's Monetary Issuance Advantage and Control: Modern states grant their issued currencies "legal tender" status through law and mandate citizens to pay taxes and civil servant salaries in that currency. The US dollar, as the legal tender of the United States, cannot be refused for debt repayment within the US. The government's strong control over the financial system, including taxation, payments, and legal tender status, makes it difficult for any decentralized cryptocurrency to truly replace sovereign currencies. Even if a competing currency is resilient, governments can use regulations and policies to diminish its circulation and acceptance.
- Lack of a Central Bank as a Lender of Last Resort: Bitcoin's limited supply means that in times of financial crisis, no central bank can provide the necessary liquidity by printing more money to stabilize markets and prevent systemic collapse. This is similar to the reasons for abandoning the gold standard in the early 20th century, where a fixed-supply monetary system lacked flexibility in responding to economic shocks.
- Regulatory Uncertainty and Divergent National Stances: Global regulatory attitudes towards cryptocurrencies vary widely, from outright bans (e.g., China) to partial or full compliance. The US IRS treats Bitcoin as "property" rather than currency for tax purposes. This fragmented regulatory environment, along with the cautious or even opposing stance of international organizations like the International Monetary Fund (IMF) on cryptocurrencies as legal tender, increases the difficulty of their global adoption and widespread acceptance.
- The US Dollar's Strong Network Externalities and Inertia as a Global Reserve Currency: The US dollar has been the world's primary reserve currency for nearly 80 years, its dominance supported by strong network externalities (the more people use the dollar, the greater its value and convenience) and usage inertia. In international trade settlement, commodity trading, and complex cross-border financial activities, the dollar still holds an absolute advantage. Foreign investors hold large amounts of US government bonds, and a significant depreciation of the dollar would severely impact the value of these assets, creating a "dollar trap" that makes it difficult for countries to easily abandon the dollar. Although the dollar's share in global foreign exchange reserves has declined, as of September 15, 2026, it remains the most important reserve currency. As of September 13, 2026, the DXY (US Dollar Index) is approximately 99.093, indicating its relative strength in the global monetary system.
