Why Layer 2s Exist·Lesson 4 of 26·10 min
Rollup Economics and Cost Breakdown
This lesson is for enrolled learners
Every transaction on a rollup has two distinct costs bundled into the fee a user pays, and understanding this split is essential to reasoning about rollup fees, sequencer incentives, and why rollups scale cost the way they do. The first component is the L2 execution fee: the cost of actually running the transaction's logic inside the rollup's execution environment, paid……
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