Layer 1 is the rock solid, decentralized and secure distributed ledger and store of value.
Layer 2 is the medium of exchange infrastructure. This, obviously, still has a long way to go, but it will eventually provide a viable and (I believe) much better alternative to the current Eurodollar standard.
#Bitcoin
Why?
Government fiat is currency of the government, by the government, and for the government.
Bitcoin is sound money of the people, by the people, and for the people.