The trouble is that no borrower in their right mind will borrow Bitcoin, a currency that has increased in purchasing power by a factor of 25 in under 6 months only to then "correct" in the "bear" market to "only" 14 times the purchasing power! By the way the real issue here is not volatility but rather the massive unrelenting bull market in Bitcoin driven by the adoption of the currency. Bitcoin borrowing and lending will only make sense once adoption of Bitcoin has reached close to its saturation level, at that point it will behave a lot like gold does today. In the meantime Bitcoin only makes sense as an equity based form of money and the Bitcoin monetary base will be for all practical purposes effectively equivalent to the entire Bitcoin money supply including M1, M2, M3 etc.
The author's site https://www.bitbond.net/ and concept is in fact so far ahead of its time that it actually at this point in Bitcoin's development highly dangerous to both borrowers and lenders alike..
^^ +1
Mortgage backed securities are a good example of a significant contributor to USD M1. Would any sane person take out a mortgage denominated in bitcoin?
Cryptocurrencies will likely coexist with fiat currencies for at least several decades.