[lakomen]

Or you could not use a scripting language and save 50 times the cost

[lorendsr]

We have Go and Java SDKs that have better performance characteristics if that’s what you’re optimizing for. I think for many businesses, optimizing for development speed is a higher priority (eg if the devs already know JS, use that). The Node runtime with v8 isolates is also able to better protect developers from writing non deterministic code (durable code must be deterministic). More info on that: https://temporal.io/blog/intro-to-isolated-vm

[hot_gril]

That doesn't solve the problem of long-running processes, CPU time isn't the limiting factor here, and devs cost more than compute resources.