I actually love the idea of having the option of going forward or backward to experience different lives. I never thought of it before i read it here, but the idea of being able to choose to go live the life of an ancient Celt next time or even to go back to those now long gone civilisations is quite joyful to me. Just as much as the idea of going forward in a time where we'll have worked out green energy and teletransportation (okay it doesn't seem to be an English word but, heh).
