Answer: USDT (also known as Tether) is a digital currency created to bridge the gap between traditional fiat currencies and cryptocurrencies. It is the first cryptocurrency to be pegged to the US dollar, allowing users to easily convert their digital assets into fiat currencies. USDT is a popular choice for traders who want to take advantage of market volatility without having to worry about the risks associated with holding cryptocurrencies. USDT is also used as a bridge currency for trading between different cryptocurrencies, allowing users to move funds quickly and easily between different exchanges. USDT is becoming increasingly popular as more people learn about its advantages, and as more exchanges adopt it as a payment method.