Layer-2 Scaling
摘要
L1 throughput is capped by design. Layer-2 is how you work around that without giving up L1 security. This chapter covers optimistic rollups and their fraud proof challenge games, ZK rollups and what validity proofs cost to generate, state channels and Lightning, Plasma’s exit game and why it lost to rollups, validiums, and the cross-L2 composability mess nobody has cleanly solved yet. Here’s what it covers: