The age at which we can begin to claim national superannuation, currently 65, needs to go up as recommended by the retirement commissioner Diana Crossan. As an army of baby-boomers approaches this age, like zombies descending on a defenceless hamlet, the day on which we can no longer afford to pay them also draws nearer.
In the past 25 years, life expectancy has increased by roughly seven years for males and five for females - that's seven or five more years of national super to pay for each person in the country. We didn't except to pay for that when the system was introduced and we can't afford to continue to pay it now.
Yet, Crossan's suggestion, moderately presented and crisply argued, has been rejected by the two main parties.
You can appreciate Labour's position. With its capital gains tax and other proposed tax reforms, it probably thinks it has come up with enough new ways to take money away from us this time round.
For National, John Key has said he made a commitment not to increase the age and if it goes up he will resign. Unfortunately, unlike "If you walk out that door, you're never coming back," this is not a bluff we are in a position to call. It is presumably a different sort of commitment from the one he made at the last election not to raise GST.