X @Nick Szabo

Bitcoin Technology & Scalability Concerns - The author suggests that current solutions like slightly bigger OP_RETURNs are insufficient for rollups [1] - Rollups, potentially from "ETHhead migrants," could fill entire Bitcoin blocks, raising scalability concerns [1] - The author estimates that four or five rollups could fill an entire block [1] Security & Decentralization Risks - The author implies that fraud proofs are less significant than the block space consumption by rollups [1] - There is a concern that Bitcoin's blockchain could be used as a "dev-daycare playground," potentially altering its intended use [1]