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One of the most innovative, exciting and revolutionary inventions in the world of decentralized finance (DeFi) is the flash loan or palak loan. In the case of conventional banking systems, even in the case of simple crypto loans, the borrower has to deposit certain assets as collateral. But flash loans are such a miraculous economic system, where it is possible to take a cryptocurrency loan worth billions of dollars in less than a second without any kind of mortgage or credit score. However, the main condition of this loan is hidden in its name; it is a loan that has to be taken, used and returned with full interest within a single transaction or block of the blockchain. This incredible mechanism of flash loans is based entirely on the smart contract of the blockchain. Multiple tasks can be combined together within a transaction or transaction on Ethereum or other smart contract-supported networks. When a developer or trader takes a flash loan, the smart contract coding must specifically specify which platforms the borrowed money will be used on and how the profits will be withdrawn and the original money will be returned to the protocol with the proceeds. According to the rules of the blockchain, if the loan provider protocol does not get its original money back at the last stage of the transaction, the entire transaction is canceled or reverted. That is, the loan that was taken does not exist in history. As a result, there is no risk of the lender losing money. This flash loan is not primarily for the daily expenses of ordinary people, but is used by highly experienced crypto traders and developers in various complex financial strategies. Its biggest use is arbitrage trading. Let's say, the price of one ether on the Uniswap exchange is $ 3,000, but on Pancakeswap it is $ 3,010. A trader can instantly borrow $1 million through flash loans without collateral, buy Ether cheaply from Uniswap, and sell it at a higher price on Pancakeswap. He then pays off the loan and pockets the huge profit of several thousand dollars in the middle. This entire process takes only a few seconds to complete. In addition to arbitrage, flash loans are used to transfer collateral from one loan protocol to another or to avoid liquidation. However, while flash loan technology has great potential, it also has some serious dark sides. The use of flash loans is behind some major hacking or theft incidents in the history of the crypto world, which is called a 'flash loan attack' in crypto language. Hackers take a huge amount of fund loan without any collateral, artificially manipulate or invert the price ratio inside a weak DeFi protocol, and take advantage of the opportunity to steal billions of dollars from the protocol, repay the loan, and disappear. Despite these risks and the need for complex coding, Flash Loans have proven that decentralized finance can break through the walls of traditional capitalism and give anyone, through the power of common sense, unprecedented and equal access to vast amounts of liquidity in an instant. Today's discussion concludes here. I hope you've found it interesting. Please share your thoughts on today's topic. Prayers for everyone. May everyone be well. Amen.