Lightning network is to Bitcoin what bank notes were to gold
Digital gold Bitcoin is often being described as digital gold. Same as gold, it is scarce and being mined and released into circulation at a fairly predictable rate. It is impossible to counterfeit. It is fungible, meaning some gold is not better than any other gold. It is divisible to a high degree. It can be anonymous.
It has most of the properties of gold, but improves them. It’s much easier to transfer, for one.