Hello. I see different platform like nexo, blockifi, etc... that can borrow you crypto or stablecoin. I'm here to ask if you have a strategy for example you borrow btc with an interest rate of 6% and then you use it on defi with 8% APR. Thanks for helpful. 
The platforms like nexo or blockifi may give you loan on fixed interest rate but there is no grantee that you can earn more interest by investing it in any defi projects. If you want to invest in defi projects or staking then do it with your own money. If you take the loan, and your project failed, you will still have to pay the loan.
