In the London borough of Lambeth, the missing children first appeared as empty school places. Births had fallen by roughly a third after 2009. Families were also leaving the borough. By 2024, almost one in five reception places stood vacant, and the council had already removed capacity equal to about 33 classes from its primary schools.
The adjustment reached particular schools slowly. Admission limits came down. Budgets tightened because funding followed pupils. In June 2025, Lambeth approved the merger of St Bede’s Catholic Infant School and St Bernadette Catholic Junior School after their governors concluded that falling enrollment made two separate schools harder to sustain. St Bernadette’s would close, with an all-through primary remaining at St Bede’s.
No single cause explains the change. Lambeth’s own account includes lower births, outward migration after Brexit and the pandemic, housing and living costs, and the way English schools are funded. That mixture is part of the story rather than an inconvenience to it. Demographic change reaches a school through actual families deciding where they can live, whether they will stay, and how many children they have. The empty places arrive before anyone can separate those lives into tidy categories.
Before the closure A school usually feels demographic decline first as a few empty seats, then as smaller budgets and combined classes. This photograph is illustrative; it does not show a Lambeth school. via Wikimedia Commons
The lag is what makes the problem easy to miss. A child who was not born in 2020 does not leave an empty reception place until the middle of the decade. The same smaller cohort reaches secondary school later, then work and parenthood later still. A place can therefore look much as it always did while the generation that will sustain it is already smaller.
Once those births are absent, no policy can add those particular five-year-olds to a classroom. Time runs in one direction. It also leaves room to respond before the same pattern has repeated through another generation.
Scott Adams calls this the Law of Slow-Moving Disasters: when people can see a serious problem coming far enough in advance, they often find ways around it. He has applied the idea to problems as different as climate adaptation and supply chains. I wouldn’t treat it as a law of history. People can recognize a slow danger and waste the warning. Still, the basic posture is right for fertility decline. A problem that unfolds over decades gives millions of families, employers, communities, and governments time to try different responses and learn from failure.
Some responses help us adapt to the generations already born. Schools can merge, older people can remain healthy and independent longer, and machines can help fewer workers do more. Those are real solutions to immediate problems. Renewal asks a different question: whether family formation can become common and durable enough that contraction does not repeat automatically.
The distinction matters because a society can become smaller once and remain capable. It may even gain from lower housing pressure or a lighter claim on land and energy. A society that becomes smaller every generation has accepted an adjustment with no natural stopping point. Each reduced cohort becomes the pool of possible parents for the next one.
That is the question at the beginning of this book. Can a free society continue to flourish when each generation is smaller than the one before it, and what would renewal require without turning anyone into an instrument of a demographic goal?
Lambeth’s schools do not answer it. They show what the question looks like when a slow change finally reaches a building, a budget, and a community that had been organized around the expectation that another class would arrive.
Citations
- Lambeth Council, “Have your say on primary school places”, 2024.
- Lambeth Council, “Have your say on Lambeth’s statutory proposals on primary school places”, 2024.
- Lambeth Council, “Lambeth schools opt for merger to tackle challenge of falling pupil numbers”, July 2, 2025.
- Scott Adams, “Episode 490”, Real Coffee with Scott Adams, April 13, 2019.
- Scott Adams, “Episode 1738”, Real Coffee with Scott Adams, May 10, 2022.