In SIMPLE terms can someone explain, hedge funds, Selling short(shorting )?

and why anyone would let you"borrow a security"to sell I know why the hedger does it cause he is expecting that it will decrease in value so that they can buy it back at a lower price and keep the difference.....but what is in it for the "lender" ..doesn't the fact that this guy wants to... show more and why anyone would let you"borrow a security"to sell I know why the hedger does it cause he is expecting that it will decrease in value so that they can buy it back at a lower price and keep the difference.....but what is in it for the "lender" ..doesn't the fact that this guy wants to sell short tell you the price is going down ..why not sell it yourself....instead of letting him keep it until the price does go down and then give it back to you ..i know 10 stocks out , 10 back in...but the lenders porfolio is now worth less..what am i msissing here
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