If every node has to verify every transaction, where is the performance ceiling of a public blockchain?
The challenge of sharding lies in security: each shard is managed by only a portion of the validators, so it’s easier for an attacker to concentrate their forces against a single shard than to attack the entire chain.
The homepage of my study notes says: Understand it first, then get started.
Knowledge can help you avoid some pitfalls, but it can’t replace risk management.
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