How Difficult is to implement Sharding after successful Merge ?

How Difficult is to implement Sharding after Merge as compared to moving to POS ? What are major challenges to implement it ?
submitted by /u/sidmehra1992
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How Difficult is to implement Sharding after Merge as compared to moving to POS ? What are major challenges to implement it ?
submitted by /u/sidmehra1992
[link] [comments]