Inhibernation, you say you can't afford to pay 50% more contributions. The problem is neither can the govt.
Right now all the talk of the 'teachers pension fund' being balanced or whatever. They all assume that the govt keeps pumping in a much larger share than they can reasonably afford.
Of course 'afford' is relative. They (and you) can afford it as long as you are willing to spend less elsewhere. But therein lies the problem. Where else do you cut from? For you, do you cut back on food? Or perhaps move to a cheaper home? For the government there choices are cut back on education, benefits or defence or...whatever.
Another way of looking at it is this. There are roughly about 10m pensioners in the UK. In 2010-2011, the cost of state pensions was around £70 billion. More if you include pension credits, winter fuel, TV license, bus pass etc. etc. Anyway, that's £70 billion for 10m pensioners, roughly.
Just the four biggest public sector schemes cost over £22 billion and only paid to a fraction of workers. That's a heck of an imbalance.
By the time you add up all the pensions, other benefits etc. you are talking about £108 billion out of a total income of £500 billion. And of course an overspend of £150 billion this year alone.
So in short, we're spending a LOT of money on just pensions & benefits. And that's just this year! Don't forget people are living longer so the problem just gets worse each year and any changes made now won't be really felt for another ten years.
I just can't see how we can tame the deficit without cutting pensions.