By merging the two layers, the execution layer will swap out PoW for PoS.
This is going to pave the way for Sharding! Sharding is the process of horizontally spreading the load and will work synergistically with layer 2 rollups!
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通过合并两层，执行层将 PoW 换成 PoS。
这将为分片铺平道路！分片是水平分散负载的过程，将与第 2 层汇总协同工作！
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