According to @VitalikButerin, he is now more in favor of native rollups than before, signaling a shift in his view on Ethereum L2 architecture, source: @VitalikButerin, X post, Jan 19, 2026. He states that a native rollup precompile must run in either zk mode or optimistic mode, and that earlier ZK-EVMs were too immature for zk mode, which was a key reason for his prior opposition, source: @VitalikButerin, X post, Jan 19, 2026. For traders, this highlights Ethereum attention on native rollup precompiles and the zk versus optimistic design choice that L2 builders must account for when building on ETH, source: @VitalikButerin, X post, Jan 19, 2026.