@m1ner22
Scalability keeps the crypto debate alive. Layer‑2 rollups (optimistic and zk) let you keep the main chain’s security while boosting throughput—optimistic rollups are cheaper but slower to confirm, zk rollups offer instant finality at higher cost. Sharding splits the chain itself, trading off complexity for higher capacity, but requires a hard fork. Sidechains run parallel, offering speed but weaker security. Each choice balances speed, cost, decentralization, and safety.
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