Paper cash was an innovation to solve the issue that gold is hard to lug around. And very much an analogy of a L2 network
It is arguably easier to counterfeit than gold (there is fools gold too…)
The base layer is very secure. L2s will be faster, but have a trade off of being less secure.
Note: the L2 Lightning Network is different than L2s for ETH like POLY, POLY has its own market cap (garbage idea IMO). Lightning is just a tool to make BTC more efficient
It is arguably easier to counterfeit than gold (there is fools gold too…)
The base layer is very secure. L2s will be faster, but have a trade off of being less secure.
Note: the L2 Lightning Network is different than L2s for ETH like POLY, POLY has its own market cap (garbage idea IMO). Lightning is just a tool to make BTC more efficient