Great question,I’ll offer my understanding, Bitcoin layer 1 (“core layer”) is fundamental, incorruptible, the base global decentralized monetary system for a new world.

It can become expensive for common payments, maybe.

So for for regular people like us to use it to buy groceries, gas, etc, there is what’s called a Layer 2 built on top of it. That works crazy efficiently for paying for small purchases. If other “Layer 2’s” are built that are better, we’ll use them. And that will likely happen.

But in the meantime, Bitcoin is working as the digital money of the future.