Last Time we saw how to perform Actions asynchronously and I promised to talk about continuations. Continuations also known as CPS or Continuation Passing Style is a mechanism for passing in code that would normally execute after a function call to the callee function as an argument, perhaps most well known in Scheme. For example if you were to call a function Sum which returns an int and print out the result like so: public static int Sum(int n) { //sure we could use (n*(n+1))/2 but this is just...