I love how simple some things are in Go. Sure, this code does not do lazy evaluation but for a lot of situations it's good enough. And look how short this code

I love how simple some things are in Go. Sure, this code does not do lazy evaluation but for a lot of situations it's good enough. And look how short this code is thanks to languages sane defaults. In Rust you would need T : Default + PartislEQ, and all that jazz