Bitcoin will still keep producing blocks roughly every 10 minutes, and users will compete to get their transactions included on-chain.It’s important to understand that today most everyday Bitcoin transactions already happen on the Bitcoin Lightning, Bitcoin Lightning transactions are instant and have almost no fees. So the base layer will mainly be used for opening and closing Lightning channels, settling balances, or sending larger amounts of BTC. You can think of the Bitcoin base layer like the Fedwire system in the fiat world , it’s used for final settlement of large transactions, while everyday payments happen on faster, cheaper layers like Lightning.