Let’s talk about sharding:
Cross-shard transactions need to pass messages between different shards to coordinate their completion, so they’re generally more complex and somewhat slower than transactions within the same shard.
The challenge with sharding is security: each shard is handled by only a subset of validators, making it easier for an attacker to focus their efforts on a single shard than to attack the entire chain.
$NEAR 5.023（-4.67%）
Cross-shard transactions need to pass messages between different shards to coordinate their completion, so they’re generally more complex and somewhat slower than transactions within the same shard.
The challenge with sharding is security: each shard is handled by only a subset of validators, making it easier for an attacker to focus their efforts on a single shard than to attack the entire chain.
$NEAR 5.023（-4.67%）