May I ask you to share your experience and advise about how to borrow ETH to buy BTC, please? I'm interested in taking adventage of price action so could be settled off-chain.
I think you can research about flash loan and how to take advantage of flash loan to borrow and trade and return the loan and take profit on the same trade, you can search for some youtube videos that can help you to achieve that, Don't forget to share your finding with us