On page 93 of his Cryptoeconomics he writes:
Layering preserves the cryptodynamic principles of decentralization, while “backing” is full abandonment of them. Bitcoin cannot be sustained as predominantly a backing money for central bank notes. People must trade with it for it to be secure.
He refers the reader to the following explanation of the term layering:
Trade using a sequence of Unconfirmed Transactions that can be Settled by either party
From my understanding 2-of-2 multisig and presigned transactions are building blocks of lightning. Does Eric refer here to a scaling solution such as lightning?