let expr0:Async<int> = get0...
let expr1:Async<string> = get1...
//please pretend that this compiles
let finalFuture:Async<string> =
    Async.Map2 expr0 expr1 (fun (v0:int) (v1:string) -> v0 + v1 )

let final:string = Async.RunSynchronously finalFuture

let finalFuture = async {
  let! v0 = expr0
  let! v1 = expr1
  return v0 + v1 }

let finalFuture = async {
  let! v0Started = Async.StartChild(expr0)
  let! v1Started = Async.StartChild(expr1)
  let! v0 = v0Started
  let! v1 = v1Started
  return v0 + v1 }