[deepsun]

Yes, I feel you. As I said, we often need to sacrifice immutability to performance, and that's ok. If they insisted using immutable structures in high-performance applications, then functional programming won't help anyway.

[fhasdfyuasd]

Hopefully we won't have to make that trade off for too long

https://www.microsoft.com/en-us/research/uploads/prod/2020/1...

[deepsun]

Even reference counting needs memory management. Granted, allocations are very fast on the JVM heap, but cannot be faster than no allocations.

[codethief]

Came here to write this.

There's also a (research) language that uses the Perceus algorithm: https://koka-lang.github.io/