Why change your diet? Reducing the population doesn't involve destroying refrigerators or reverting to the Stone Age, and if people want to import bananas and oranges, why shouldn't they? Indeed since everyone will have more money to spend, and free energy, we might expect food to become even more varied and interesting.

Cheryl: Could you possibly point out where, in my graphs, the ratio of nonworking population to working exceeds the current value? There is a blip at 60 years hence, but as I explained earlier, that is an artefact of the coarse sampling interval and corrects itself within 5 years anyway. You seem to have missed the key point that children consume just as much as pensioners - but you are not alone in that misconception. The cost of raising a child to age 20 in the UK is now about £240,000. State pension is about £6000, so a 60-year-old can live for 40 years on what it costs to raise one child. But the over-60's die off at such a rate that there are only as many pensioners as children, so continuously reducing the number of children simply reduces the total burden on the working population. Remember this isn't a one-off pause in reproduction but a continuous process of reduction.

For what it's worth, UK calorific intake has actually decreased since 1950, but the universal adoption of home insulation and central heatig has reduced our calorific demand even more. All my contemporaries remember being cold as children - none of my kids or grandchildren has ever felt cold indoors, and since nobody walks to school opr plays in the street these days, they probably won't ever experience routine coldness outdoors either!