What, in your opinion, is the difference between a libertarian and an anarcho-capitalist, and why have you chosen to identify as the former, rather than the latter?

Is your goal an all-out libertarian paradise, or merely to move society away from its current path of encroaching oppression and more towards general increased liberty? If the former, do you think it's possible in your lifetime barring some biblical catastrophe which destroys current structures and standards of government (along with much of other aspects of society)?