BTC for COLLATERAL, borrowing against your BTC, to buy what, more BTC? Loooking at the cycle this summer might be the time to buy the AUG / SEP dip, and sell in NOV. But I will use my stables for that one.... lending my BTC is another story I did that in the past on Kucoin and that was kinda interesting but Celsius scared me away from anything that involves me not holding my keys !PIMP