The security analysis elsewhere in this thread is correct (v8 isolates are not a security boundary), but I think that may miss a different point. A cloud provi

The security analysis elsewhere in this thread is correct (v8 isolates are not a security boundary), but I think that may miss a different point. A cloud provider would be unwise to use v8 isolates as a way to separate tenants from different customers. But there might be many cases where the same customer might benefit from having one of their shardable workloads leverage v8 isolates. Of course not every single-tenant multi-shard workload is appropriate; it all depends on what isolation properties are needed, and how amenable the shards are to colocation.