I don't think that's really the use case I'm describing. Maybe I'm doing a bad job, I dunno. The use case is essentially user logic for event stream processing

I don't think that's really the use case I'm describing. Maybe I'm doing a bad job, I dunno. The use case is essentially user logic for event stream processing, where the events are things like "received an email" or "clicked a link" or "3 days have passed". You're not going to spin up a KVM for every contact on a 2 million member email list even if you're using Firecracker, but executing a WASM blob for every event might be feasible.