Ethereum co-founder Vitalik Buterin has put a spotlight on the need for internal scaling and parallelization within Layer 2 rollups.

This call to action from Buterin in his Thursday blog post comes after the Dencun hard fork took place earlier this month, which introduced a crucial improvement known as EIP-4844 aimed at drastically reducing transaction fees for Layer 2s.

While the hard fork has been successful in terms of reducing transaction costs for rollups, it has also resulted in some challenges, Buterin noted.

He highlighted an incident where the Base rollup experienced a surge in usage post-Dencun, hitting its internal gas limit and triggering a spike in fees.

According to Buterin, this underscores a need for change: beyond optimizing data handling, rollups should also scale …