> has excellent support for parallelism concurrency, not parallelism, and even there it doesn't have anything similar to immutable data structures or java.util

> has excellent support for parallelism concurrency, not parallelism, and even there it doesn't have anything similar to immutable data structures or java.util.concurrent or System.Collections.Concurrent > support for safety Not more than any other available GC'd languages. > some things really can't be done without efficient GC, and Go gives you that Only if you care about pause times at the expense of throughput, and you don't have to deal with very large heaps