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by nine_k 997 days ago
Yes, because most people have like 30 contacts in their IM roster. Your phone, your home router, maybe even your smart fridge would be able to tackle this scale.

Something like Twitter cannot be as easily replicated, but it's never been about privacy ad encryption.

Another thing that's hard to replicate is a global namespace. Federated namespaces (see email. mastodon. matrix) work acceptably well though.