Bitcoin has the best security model. In 10 years does a single massive ledger make more sense than transactions at the edges? The value proposition of Bitcoin

Bitcoin has the best security model. In 10 years does a single massive ledger make more sense than transactions at the edges? The value proposition of Bitcoin has always been transaction scalability by elimination of charge backs. With a fundamentally irreversible ledger as a base layer, networks and services will develop around it that provide whatever combination of speed, fees, and liquidity you're looking for.