A record heat wave is forcing a very European argument: is air conditioning a necessity or a noisy blight? One man in Paris, in a wheelchair and on a ventilator, has spent two years in court just for the right to install a unit. There’s a planning lesson hiding in the discomfort.

The Journal’s front page profiles Luca Funaro, a 32-year-old Parisian with a rare genetic illness who relies on a wheelchair and a ventilator, sweltering through a record heat wave because his neighbors won’t allow an air-conditioning unit in the building courtyard — too loud, they say. He’s spent two years and thousands of dollars in court. “If it’s too hot, disabled people get dehydrated, and it’s difficult to breathe,” he says.
Europeans have long shunned AC as noisy, ugly and unnecessary — a stance that made perfect sense when the summers were mild. The heat waves changed the math faster than the buildings, the rules, or the habits could adapt. Now it’s a political battle fought one courtyard at a time.
The uncomfortable truth under the story: the resistance to air conditioning wasn’t crazy — it was an optimization for a climate that no longer exists. That is exactly how under-preparation feels in a financial life, too. “I don’t need an emergency fund, my income is steady.” “I don’t need long-term-care coverage, I’m healthy.” “I don’t need bonds, stocks always come back.” Each is reasonable — until the heat wave arrives and you’re the one in court trying to install the unit you should have put in years ago.
The buffer you resent building in the mild years is the one that saves you in the hot one. And you almost never get to install it during the emergency — by then the neighbors are saying no.
We’d rather build the cooling before the heat wave: the cash reserve while income is steady, the long-term-care conversation while you’re healthy, the bond ladder while stocks are high. None of it feels necessary on a mild day. All of it is the difference between discomfort and a two-year court battle when the climate turns.
Almost every protective layer in a good plan — the cash reserve, the bond ladder, the long-term-care coverage, the insurance — feels unnecessary on the mild day you set it up. That’s the trap. Europe skipped air conditioning because the summers used to be gentle, and now people are in court trying to retrofit it in the middle of a heat wave. Financial buffers work the same way: they have to be installed before the climate turns, while you still can, calmly, at a reasonable price. We build the cooling in when it’s cool — because nobody gets to pour the foundation during the flood.
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