The reason it's amazing is that it's being done without a GC, while still giving you control over allocation, and even being able to inline the lambdas in many

The reason it's amazing is that it's being done without a GC, while still giving you control over allocation, and even being able to inline the lambdas in many places. It's not that lambdas themselves are hard, it's that they made it work with all of the other constraints of the language.