@bl4de19
Scalability is the core debate in crypto. Layer‑1 upgrades like sharding boost throughput but can dilute decentralization. Layer‑2 rollups—Optimistic or zk—process off‑chain and settle on‑chain, offering speed and fees, yet rely on rollup operators or complex proofs. Sidechains and state channels trade security for instant finality. Path balances speed, cost, and decentralization differently—understanding trade‑offs is for investors and developers.