Oh yes.
Nuclear fusion.
The perennial miracle just over the horizon.
When I was a boy, we spoke of it with something close to reverence. The clean sun-in-a-box. Infinite energy. Civilization unchained from scarcity. That was nearly half a century ago.
Half a century.
So let us ask a rather impolite question:
What, exactly, has changed?
Have we witnessed a decisive scientific breakthrough that suddenly makes commercial fusion inevitable?
Not really.
What we have seen is progress—yes—but progress of a very particular kind. Incremental. Expensive. Perpetually incomplete.
The problems, as it turns out, are not merely technical inconveniences.
They are staggering.
Because fusion is not just “another power source.”
It is an attempt to replicate stellar processes under terrestrial constraints.
To hold plasma at temperatures exceeding the core of the sun.
To confine it.
Stabilize it.
Extract energy from it.
All without the entire apparatus destroying itself in short order.
A modest engineering challenge, clearly.
Which brings us to the grand European monument to this ambition:
ITER, under construction in southern France.
A tokamak reactor of heroic proportions.
If you follow the news feeds, you will have seen the glossy renderings. The confident timelines. The quiet revisions of those timelines.
Construction began roughly twenty years ago.
Two decades.
And what do we have?
Not a commercial plant.
Not even a finished experimental one.
But a construction site.
A very expensive, very sophisticated construction site.
Still.
ITER is, to be fair, what it claims to be:
An experiment.
A scientific endeavor.
A proof-of-concept attempt at scale.
It is not designed to produce commercial electricity.
And that alone should give pause.
Because if after decades and tens of billions we are still building experiments, one must question how far we remain from anything resembling deployment.
Meanwhile, reality does not wait.
Particularly not in Europe, where energy constraints are far more acute than in North America.
No vast shale basins to cushion supply.
Higher prices.
Greater vulnerability.
And yet, in the region that arguably needs stable, abundant energy most urgently, the flagship fusion project proceeds at a pace that can only be described as glacial.
One is tempted to ask why.
The charitable answer is complexity.
The less charitable one is recognition.
Perhaps those most deeply involved understand something the public prefers not to hear:
That fusion, while physically possible, may not be economically or practically viable on Earth in any meaningful timeframe.
At least not in the way it is sold.
Which leads to an awkward comparison.
We already have nuclear power.
Nuclear fission.
Mature technology.
Decades of operational experience.
Capable of delivering enormous amounts of reliable energy.
And, when engineered and managed competently, remarkably safe relative to the hysteria surrounding it.
It exists.
Now.
It works.
And yet, it is politically constrained, socially distrusted, and strategically underutilized.
While fusion—perpetually not quite ready—is granted a kind of mythic status.
The energy source of tomorrow.
Always tomorrow.
Never quite today.
And so we continue to pour billions into moonshots.
Because civilization has developed a taste for them.
Grand visions.
Heroic scale.
The promise of transcending limits rather than managing them.
Fusion fits this psychology perfectly.
It is not just energy.
It is redemption.
Clean.
Limitless.
Free of trade-offs.
Or so the story goes.
Stories are powerful.
They sustain funding.
They justify delay.
They convert absence into anticipation.
And anticipation, unlike delivery, has no deadline.
Now, to be clear:
Fusion research is not useless.
Scientific exploration rarely is.
There is value in pushing boundaries.
In learning what is possible.
In discovering where the real constraints lie.
But confusing research with imminent solution is a different matter.
That is not optimism.
It is narrative inflation.
And narrative inflation has a way of distorting priorities.
Because every euro, every dollar poured into distant possibility is a resource not deployed into present reality.
Into systems we know how to build.
Operate.
Scale.
Improve.
Which brings us back to the uncomfortable core.
We have an energy source that works.
We hesitate to use it.
We have another that does not yet work commercially.
We celebrate it as inevitable.
And we call this strategy.
Perhaps it is.
Or perhaps it is something else.
A cultural preference for dreams over decisions.
For promises over trade-offs.
For futures that never quite arrive over realities that demand action now.
Fusion may yet have its day.
Stranger things have happened.
But if history is any guide, that day will arrive much later, at much higher cost, and in much more limited form than currently imagined.
Until then, the sun remains in the sky.
And on Earth, we are left with the choices we already have.
Whether we like them or not.