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Suppose I want to make coffee. This involves 4 steps: 1a. grind coffee beans 1b. heat water 2. combine 3. filter All these steps take time, so they return a Future. This is our domain:     import scala.concurrent.{Await, Future} import scala.concurrent.ExecutionContext.Implicits.global //We need an executionContext to run futures import scala.concurrent.duration._ //This provides the "1 ...