The Invisible Trillion · No Going Back

What This Chapter Is Not Saying

This chapter is not saying modern life is great and everyone should be grateful and stop worrying. That would be a stupid argument and you would rightly reject it.

This chapter is saying something more specific: the debate you are having is never really “modern life versus pre-modern life.” That debate is already over. It was over before you were born. No society that has acquired refrigeration, anesthesia, electric light, and the internet has ever voluntarily given any of them up, and there is no reason to think yours will be the first.

The real debate is always about specific changes at specific costs. It is always about marginal questions. Not “should we have data centers?” but “how should data centers be powered, where should they be sited, how efficient can they get, and who decides?” Not “should we have air conditioning?” but “how do we cool a warming world without making the warming worse?” Not “should we have smartphones?” but “how do we mine cobalt without exploiting children, and what do we do with the phone when you’re done with it?”

These are real questions. They have real answers, some of them known and some of them still being worked out. They are the questions that will shape the next fifty years.

There is a distributional point hiding inside all that convenience, and it is worth making plainly, because the rest of this book depends on it. Almost everyone benefits from the buildout, diffusely — the cheaper service, the faster answer, the package that comes the next day. Almost no one would give those up; that is the whole argument of this chapter. But the costs do not land the way the benefits do. They concentrate, geographically and physically, on whoever happens to live next to the infrastructure that delivers them.

For the family in the third house, the data center is an abstraction somewhere over the horizon, and “no going back” is simply true. For the family whose subdivision it backs onto, it is the highway story — the noise, the bills, the slow unmaking of a neighborhood that the chapters on the people next door described in detail. Both families are real. Both stories are true at the same time. “No going back” is the honest view from one of those houses and not the other, and a book that told only the comfortable half would be lying by leaving the other half out.

But you cannot answer the real questions well if you are still secretly relitigating whether the last three hundred years of technological change were a mistake. They weren’t, and they won’t be reversed, and pretending otherwise is a way of letting yourself off the hook from the harder work of asking the actual questions.

The Quiet Part

There is one more thing worth saying, and it is the part that usually gets skipped.

You are going to live your whole life inside a civilization that runs on about 300 GJ per person per year, give or take. That number is not going to drop to 15 GJ, which is what your great-great-great-great-grandparents used. That civilization is gone. Its return would require the voluntary death of about seven-eighths of humanity, and nobody sane is proposing that.

What that number might do, over your lifetime, is stay roughly flat while the stuff inside it changes enormously — more of it electric, more of it from the sun and the wind and the atom, more of it used by machines you can’t see doing work you barely notice. The efficiency revolution that quietly happened between 1975 and 2026 will probably happen again between 2026 and 2075, and you will live through it, and most of it will be invisible to you, and that is fine.

Your job is not to reverse the last 300 years. Your job is to help decide what the next 50 look like. That is a much more interesting job, and you are, if you want to be, qualified for it.

The chips in the data centers — the ones that worried you enough to start reading this book — are part of the answer, and part of the question. They always were going to be. That is what the next chapter is about.

A note on sources: the per-capita energy figures in this chapter come from the U.S. Energy Information Administration’s Annual Energy Review. The household snapshots are composites, built from census data, period household inventories, probate records, and utility studies, with the numbers rounded generously. The child mortality figures are from historical demographic studies; the exact numbers vary by region and decade but the orders of magnitude are solid. If you want to dig into any of this, Vaclav Smil’s Energy and Civilization is the serious version of this chapter, and Hans Rosling’s Factfulness is the readable one.

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