"Anyone that doesn't think there's a big generational war coming must be on Prozac," says Laurence Kotlikoff, professor of economics at Boston University and author of 'The Coming Generational Storm'.
Are we heading for a future of protest and destruction?
It is 2024 and the baby boomer generation, currently in their forties and fifties, are starting to retire.
The number of people over 65 has increased by nearly 50% since 2004. And this is just the beginning.
Adair Turner, chairman of the Pensions Commission claims: "It is possible that there is no limit to life. It's possible that this life expectancy increase may go on forever".
With an 80% tax rise to help fund an ageing population, the younger generation are starting to get angry.
We asked BBC Interactive users what they thought of the issue
Members of the same family find themselves on opposite sides as the young rebel against their parents.
Are we heading for a future of protest, destruction and the threat of financial meltdown?
The ageing population is not the only problem.
A low birth rate means there are fewer numbers of younger people. This combination is one of the major challenges Britain will face in the future.
IF looks at the tough choices Britain must make to deflect the fall-out of an ageing population.
Choices about whether to increase immigration, the birth rate, the age of retirement or taxes, or whether to reduce pensions, means-testing healthcare and lowering the voting age to lessen the burden on the young.
If... the generations fall out was broadcast on BBC Two on Wednesday, 24 March, 2004.