Could just be speculation on falling prices. 1. Borrow BTC 2. Sell borrowed BTC at high price point 3. Buy BTC including interest at lower price point at any

Could just be speculation on falling prices. 1. Borrow BTC 2. Sell borrowed BTC at high price point 3. Buy BTC including interest at lower price point at any time before payback date. 4. Give back BTC including interest at payback date. Basically just a way to short sell BTC.