Nothing is set in stone, especially when it comes to the world of politicians. Their mission is to govern, and to govern down to the minutiae of each of us. A prime example of this is the ever expanding wasteline of EU law and regulations. The European Union will never be a simple single market place where people can freely trade due entirely to the nature of the politicians and civil servants in Europe. It will become a federalist state with extremely high barriers to trade: where people are licensed to trade, outside goods are allowed only under exorbitant tariffs and exports are heavily subsidized.
Reading the original Treaty of Rome and comparing it to what it has become clearly defines the natural advancements of a relatively simple idea corrupted by the poisoned hands of politicians. But then a politician's idea of a market place is radically different from a rational person's. What was it that we were signed up for? In the Conservative Party manifesto of 1970 Europe was only mentioned three times and then in respect to negotiations. Yet Heath signed us up to the Treaty Rome without asking. Wilson's referendum of 1975 was built on the renegotiations of entry that had taken place over the previous year. Yet reading a Labour Party pamphlet of that time exposes the fabrications and limited knowledge of trade that politicians had (and continue to have).
The modern era is tainted with lies and obfuscation from all sides. A Labour party that reneged on its manifesto pledge for a referendum and a Conservative party leader purposively muddying the waters via convoluted English. Conservative Home's analysis suggests that the Tories are unlikely to offer a referendum on the Lisbon Treaty. The party will instead seek renegotiations. Since Chamberlain returned from continental Europe with a piece of paper in his hand, that is all the politicians of this country ever come back with. Unfortunately for us that piece of paper is regularly stamped with, "WE HAVE GLADLY SURRENDERED TO EU".