ダイ（Dai）の‌価格DAI

‎You’re browsing a list of crypto tokens and you see it: the infinity symbol (∞) next to the supply. It stops you in your tracks. "If they can just create more whenever they want, what stops it from becoming worthless?" ‎ ‎It’s a brilliant and logical question. The answer lies in understanding that these tokens aren't just for holding—they're designed for a job, and an unlimited supply helps them do that job better. ‎ ‎Let's look at two famous examples: ‎ -‎ $DAI: The Stablecoin That Breathes ‎ ‎DAI is a "stablecoin." Its main job is to always be worth $1. It’s like digital cash. ‎ ‎Think about real cash. If the economy is growing and people need more dollars, the government can print more. If there's too much cash, they can pull some out of circulation. DAI works the same way! ‎ ‎· When you take out a loan, you create new DAI. The supply grows. · When you pay back your loan, that DAI is destroyed. The supply shrinks. ‎ ‎This "infinite" supply is what allows DAI to be flexible and reliable, always meeting demand to keep its $1 peg. Its value isn't in scarcity; it's in its stability and usefulness. ‎ -‎ $DOT: The Token That Secures a Network ‎ ‎DOT has a different job. It's the fuel and the security guard for the Polkadot network. People "stake" their DOT to help run the network and, in return, they earn rewards. ‎ ‎Here, a flexible supply helps control inflation. The network can create new DOT as rewards for stakers, but it's designed to do so at a controlled rate. This encourages people to participate and secure the network, which makes the whole system stronger. Its value comes from its utility in a growing ecosystem. ‎ ‎The Other Side: Fixed Supply Tokens ‎ ‎Of course, many tokens like $AAVE have a fixed supply. Their value is heavily tied to digital scarcity, like a rare collectible. If the project becomes more popular and useful, but the number of tokens is limited, the price per token could rise. ‎ ‎The Bottom Line ‎ ‎It’s not about one model being better. It’s about the token’s purpose. ‎ ‎· Unlimited Supply ($DAI, $DOT): Built for a specific job that requires flexibility. · Fixed Supply ($AAVE): Built for digital scarcity. ‎ ‎So next time you see that infinity symbol, don't just see risk. Ask, "What job is this token designed to do?" The answer will tell you everything.

Stablecoins are cryptocurrencies designed to maintain a stable value, typically pegged to a fiat currency like the US dollar, a commodity like gold, or a basket of assets. Unlike volatile assets such as Bitcoin, which can swing 10-20% in a day, stablecoins aim for minimal price fluctuation—often holding within 0.1% of their peg. The first major stablecoin, Tether (USDT), launched in 2014 on the Bitcoin blockchain via Omni Layer. Today, the sector exceeds $170 billion in market capitalization (as of late 2025), with over 200 variants.Types of Stablecoins Fiat-Collateralized: Backed 1:1 by reserves in bank accounts or equivalents. Examples: USDT (Tether, ~$120B cap), USDC (Circle, ~$35B cap), BUSD (formerly Binance). Audits verify reserves, though controversies (e.g., Tether's 2019 fine for misleading claims) highlight transparency risks. Crypto-Collateralized: Over-collateralized with other cryptocurrencies (e.g., 150-200% ratio) in smart contracts. DAI (MakerDAO) is the flagship, pegged to USD via Ethereum-based collateral like ETH. This decentralized model avoids fiat custody but introduces liquidation risks during market crashes. Algorithmic (Seigniorage): Maintain peg through supply adjustments via algorithms, without direct collateral. TerraUSD (UST) famously collapsed in May 2022, wiping $40B from the market due to a death spiral. Newer ones like USDD (Tron) use hybrid mechanisms but remain niche and risky. Commodity-Backed: Pegged to gold/silver (e.g., PAXG by Paxos). Less common, with ~$1B total cap. Mechanics and Use CasesStablecoins operate on blockchains like Ethereum, Tron, Solana, and Binance Smart Chain for low-cost transfers (fractions of a cent vs. $20+ for bank wires). Key roles: Trading Pairs: 70-80% of crypto exchange volume involves stablecoins (e.g., BTC/USDT), providing liquidity without exiting to fiat. Remittances: $800B annual market; stablecoins cut fees to <1% and enable instant cross-border transfers. DeFi Yield: Users lend stablecoins on platforms like Aave for 5-15% APY, far above traditional savings. Payments: Adopted by PayPal (PYUSD) and Visa for settlements. Impact on the Crypto MarketStablecoins act as a bridge between traditional finance and crypto, amplifying both growth and risks.Positive Impacts Liquidity Injection: They enable 24/7 trading without fiat on-ramps. During bull runs (e.g., 2021), USDT issuance correlated with Bitcoin highs, as new mints signal capital inflows—often $1B+ weekly. Volatility Hedge: Traders park funds in stablecoins during downturns, preventing mass exits. This stabilized the 2022 bear market, where crypto cap fell 70% but recovered faster than in 2018. Adoption Driver: Institutional entry (e.g., BlackRock's BUIDL fund using USDC) and regulatory clarity (EU's MiCA framework, 2024) have grown the sector 5x since 2020. Stablecoins now handle $10T+ in annual transfer volume, rivaling Visa. DeFi Ecosystem: They power $100B+ in locked value, enabling complex products like flash loans and derivatives. Negative Impacts and Risks Systemic Risk: Concentration in USDT (70% dominance) creates single points of failure. A depeg (e.g., USDC briefly hit $0.87 in 2023 Silicon Valley Bank crisis) can cascade—liquidating $10B+ in positions. Market Manipulation: "Printing" stablecoins has been accused of pumping prices artificially; studies show Tether mints precede BTC rallies by hours. Regulatory Scrutiny: US proposals (2025 Clarity for Payment Stablecoins Act) and global crackdowns target reserves and AML. Bans in China (2021) shifted volume but didn't eliminate them. Contagion Events: UST's failure triggered Three Arrows Capital's bankruptcy, erasing $200B from crypto in weeks. Algorithmic models remain under 1% of supply due to distrust. In summary, stablecoins have matured crypto from speculative gambling into a functional financial system, but their centralized elements import TradFi vulnerabilities. With CBDC competition rising (e.g., digital yuan), their evolution will shape crypto's next decade. Market cap growth from $5B (2019) to $170B underscores their indispensability—yet prudence demands diversified holdings and reserve vigilance.

DAI/USDC

The First Mover: @MakerDAO Launched in 2017, MakerDAO introduced something revolutionary, crypto-backed loans without banks. Users could lock $ETH and mint DAI, a stablecoin pegged to $1. That was the spark that started the DeFi fire.