Monotony of Eternity

I wonder if anyone has ever thought about his life after death? Well, obviously everyone has but perhaps not in the way that I am trying to refer here. With eternity ahead of us, wouldn't life be a series of monotonous beeps that keep playing and cause irritation? We are 'programmed' to experience a specific time frame and expect a result in the end. Would our programming evolve into letting us walk a straight road that never ends with no destination to await us in the end. After all, it's the journey that's more worthwhile than the destination, but what would you say to a never-ending journey with no destination to expect in the end?