Circa 2015, there's a good chance that the following events will occur:
1) Cheap oil will run-out.
2) The limits of silicon miniaturisation will be attained, Moore's law will fail, and economic growth predicated upon increasing computer processing power, will cease.
3) The size of the working population in European countries will decline to the point that it is unable to support the retired population.
4) The early effects of global warming will seriously kick-in.
It's likely, therefore, that any money you're putting away now into a pension will become totally worthless before you can access it. As Tom Hodgkinson points out in 'How to be free', the people selling you pensions want your money now; they aren't spending their time ferreting away money for the future, they're buying opulent houses and extravagant cars now, based upon the money you're giving them now.