Yes, you can get USDT for free in the following 5 ways: 1. Participate in airdrop tasks on mainstream exchanges, such as registering and giving away, completing novice tasks, and inviting friends to get rewards; 2. Join the blockchain project community and obtain airdrops through Web3 social platform or Twitter/Discord interaction; 3. Participate in the "test network" activity, register the test chain address and simulate the use of DApp to get incentives; 4. Complete tasks on the cryptocurrency navigation platform to receive novice gift packages, participate in sign-in, lottery and other activities; 5. Interact with the content creation and community, and publish original content to obtain USDT rewards from the project party. At the same time, you need to pay attention to security risks, do not fill in private keys, do not believe in scams, and choose mainstream platforms to participate.

USDT is not a scam, but there are risks. 1. Tether provides liquidity in the crypto market by issuing USDT, a stablecoin anchored by the US dollar; 2. The company's background is related to Bitfinex, and has been fined for audit issues but has increased transparency; 3. The reserve assets are mainly US Treasury bonds rather than pure cash, and there are certain financial risks; 4. Face risks such as insufficient audit frequency, centralized control and compliance restrictions; 5. The USDT market is highly accepted, but trust needs to be based on continuous disclosure and compliance operations. Overall, USDT is trustworthy but does not equal zero risk, and users should be cautious.

USDT cash exchange needs to be operated through a trading platform that supports fiat currency withdrawal. 1. Prepare a trading platform account that supports fiat currency withdrawal (such as Binance, Ouyi, Huobi, etc.); 2. Complete KYC real-name authentication; 3. Bind bank cards or Alipay and other payment methods; 4. Log in to the account and ensure that USDT is in the fund account or spot account; 5. Enter the OTC or fiat currency area and choose to sell USDT; 6. Set the sales amount and match the buyer; 7. After confirming the other party’s payment, click “Confirm Coin Delivery” to complete the transaction. Withdrawal methods include OTC fiat currency transactions, bank card withdrawals and third-party payments, among which OTC is more efficient. Notes include making sure to verify that the money is received before releasing, avoiding frequent large withdrawals, and contacting customer service in time when encountering abnormalities. The key to the entire process is to choose

DAI is safe, but has been briefly deaned. 1. DAI is generated by over-collateralized crypto assets, with a collateral rate usually higher than 150%; 2. Automatically execute a clearing mechanism for smart contracts to ensure the stability of the system; 3. Core support assets include ETH, WBTC, USDC and other strong liquidity tokens; 4. Historically, during the "Black Thursday" in 2020, a short period of deansted to US$1.1, but no systematic collapse occurred; 5. The MakerDAO community improves stability by increasing the types of collaterals and introducing USDC reserves; 6. Compared with centralized stablecoins, DAI has higher transparency and trustworthiness characteristics, but still faces potential risks in extreme market conditions.

BTC, USDT and USDC are three core assets with complementary functions in the crypto ecosystem. BTC is the "spear" of high risk and high returns, and the goal is wealth growth. Stablecoins are defensive "shields", with the goal of preserving value and providing liquidity. For investors seeking long-term capital appreciation, BTC is the core option. Stablecoins are an essential tool for users who want to flexibly operate, manage risks or earn stable returns in the crypto market, with USDC being more favored by conservative users due to its robustness.

The most popular tracks for new funds currently include re-staking ecosystems, integration of AI and Crypto, revival of the Bitcoin ecosystem and DePIN. 1) The re-staking protocol represented by EigenLayer improves capital efficiency and absorbs a large amount of long-term capital; 2) The combination of AI and blockchain has spawned decentralized computing power and data projects such as Render, Akash, Fetch.ai, etc.; 3) The Bitcoin ecosystem expands application scenarios through Ordinals, BRC-20 and Runes protocols to activate silent funds; 4) DePIN builds a realistic infrastructure through token incentives to attract the attention of industrial capital.

Crypto market value exceeded US$3 trillion, and funds mainly bet on seven major sectors. 1. Artificial Intelligence (AI) Blockchain: Popular currencies include FET, RNDR, AGIX, Binance and OKX launch related trading pairs and activities, funds bet on AI and decentralized computing power and data integration; 2. Layer2 and modular blockchain: ARB, OP, ZK series, TIA are attracting attention, HTX launches modular assets and provides commission rebates, funds are optimistic about their support for DeFi and GameFi; 3. RWA (real world assets): ONDO, POLYX, XDC and other related assets, OKX adds an RWA zone, and funds are expected to migrate on traditional financial chains; 4. Public chain and platform coins: SOL, BNB, HT, OKB are strong

Yes, the altcoin rebound may indicate that a new bull market has begun, but entry should be cautious. 1. Market sentiment has recovered, and the trading volume of altcoins on platforms such as Binance, Ouyi, and Huobi has surged, and funds have flowed into the AI, Layer2, and GameFi sectors; 2. The counterfeit rebound shows the characteristics of the early bull market, Bitcoin has stabilized, hot spot rotation has accelerated, and new projects have frequently been launched; 3. Whether to enter the market needs to be judged based on investment strategy: long-term investors can gradually build positions in leading projects, short-term traders can pay attention to opportunities in active currency bands, and try new coins in small positions to avoid chasing highs; 4. In the future, we need to observe whether Bitcoin can break through the previous high, the flow of funds on the three major platforms, the Fed's policies and on-chain activity and other key indicators to judge the sustainability of the market.