Here’s a story I’ve been hearing and reading versions of repeatedly recently. To be honest, it makes no sense to me, but perhaps you’ll be able to make sense of it.

Once upon a time there was a mine-owner. The coalmine that he owned was a profitable mine, with rich seams that ran not too deep underground and that were wide enough for a man to be able to work them without having to lie down. Not, of course, that the mine-owner worked the mine himself. No: he paid men from the neighbouring village to work for him, and it was they who went underground every day.

The work itself was, naturally, physically demanding, but there were always plenty of men willing to take the job, because the mine brought in a handsome income for the owner, and he, being a fair man, ploughed much of that income back into the business. He paid the miners a more than fair wage. He also took good care of them, providing them with hot-water showering facilities, clothing allowances and subsidised healthcare.

In the long term, the mine was, of course, a killer, with the miners suffering from, and many dying from, lung disease. However, life expectancy in that region was not high anyway, and the miners stoically accepted the risk they took.

A more dramatic risk was of drilling into a pocket of carbon monoxide trapped in the seam; the gas would then escape and asphyxiate the miners. To detect such potential disasters early, the mine-owner kept a community of young boy and girl choristers. He provided each team of miners with one of these young children in a cage, who would descend into the mine with them. All of these children had beautiful singing voices, and they would happily sing all day in their cages. In the event of the release of the odourless gas, the child would succumb to the gas before the adult miners were aware of it. When they heard the child’s singing stop, they would know that they needed to escape from the seam immediately.

When the boys reached the age where their voices broke, and when the girls reached child-bearing age, the mine-owner would ‘retire’ them, and they would then breed a new generation of choristers.

Initially, the miners were grateful for the children, whom they recognised as lifesavers. They grew attached to them and found that their cheerful singing made the long hours of each underground shift pass a little more quickly and lightly.

However, as time went on, the miners’ attitude changed. The choristers’ ceaseless joyful singing, apparently ignoring the fate that they might face at any moment, began to aggravate some of the miners. Others, recognising that the singers were a signal of misfortune, started to blame the children themselves for bringing this misfortune. Some miners started refusing to take the children down into the mine with them, or to have anything to do with them.

Over the years, some of the choristers being taken down seemed to develop extraordinary abilities to avoid their fate. Seemingly unaware that their whole purpose was to succumb to the gas, some of them evolved, over several generations, respiratory systems that mitigated the effect of the poison, and they took much longer to die. There were even some cases where choristers were able to carry on singing after the weaker of the miners had started to be affected by the gas. Needless to say, the miners resented such stubborn resistance on the part of the children, and insisted that the mine-owner start a genetic programme to breed a strain of children that would offer no resistance to the carbon monoxide.

In other cases, choristers started constructing rudimentary face masks, which they then slipped over their head in the darkness of the mine. These masks appeared to give them some protection against the carbon monoxide. When the miners discovered this was happening, they insisted the mine-owner keep the children locked up twenty-four hours a day, with no access to any construction materials. They were determined that the choristers accept their role as helpless victims.

Eventually, all of the children in the mine-owner’s stock were weakened. As luck would have it, this coincided with a period when the miners were working a seam that was riddled with pockets of carbon monoxide. Every day a pocket was hit. Every day, more and more children died.

In a relatively short time, the entire community of choristers was wiped out. The very next day, the miners, now unprotected, started to be killed in increasing numbers by the gas. A few months later, there was not a single miner left alive. The mine-owner was forced to close his mine, and the families of the miners, with no financial support, slowly but inexorably starved to death.

It was only at this point that it occurred to the mine-owner that, if he had invested money in developing the gas masks that the children had invented, he could have equipped all his miners with them, and nobody, miner or chorister, would have had to die. But by then it was too late. Nobody should wait until it’s too late.