This week, our boys talk about promises: where do they come from, and what they are good for?

• Soroush's post about the experience of writing a Promise class
• Soroush's follow-up post about how easy it is to build cool things with promises
• The JavaScript A+/Promise spec
• WWDC video for improved GCD in Swift 3
• Chris Lattner's retrospective on Swift 3
  • “First class concurrency: Actors, async/await, atomicity, memory model, and related topics.”
• “Lifetimes” in Rust
• Async and Await in C#
• Common iOS Promise libraries
  • PromiseKit
  • BrightFutures
  • FutureKit
  • SwiftTask
• UView+Promises from PromiseKit
• Soroush's Promise library