“You can be really old at 60 and really young at 85.”

She said it, as it happens, while cheerfully listing everything that had gone wrong with her body. Replaced knees, replaced hips, no more skiing, no more running. Which is exactly what gives the line its weight. She wasn’t claiming you can stay physically twenty-five forever. She was saying something sharper, that “old” and “young” are states a person is in, and those states have come loose from the number on the birthday cake, and even from the state of the joints underneath. You can be old at 60. You can be young at 85. The number is barely involved.

Old is a direction, not an age

Old is a posture before it is anything else.

Once you stop treating “old” as a date and start treating it as a condition, you can see it arriving in people years, sometimes decades, ahead of schedule. And it has a reliable signature. The future tense goes first. The genuinely old, whatever their age, stop speaking about what’s coming and start speaking only about what’s been. Their sentences fill up with “too late” and “at my age” and “no point now.” They stop starting things. They stop being curious about anything they didn’t already know at fifty. The world keeps changing and they decide, somewhere in themselves, that they’re done changing with it.

None of that requires a particular birthday. It’s a posture, a turning away from the future, and a person can adopt it absurdly early. I’ve watched people do it in their fifties, settle into the chair, declare themselves finished, and spend thirty more years being old before they ever got round to dying.

My uncle Dennis, old at sixty

My uncle Dennis decided he was old at about fifty-eight. You could almost watch it happen. He retired, sat down in a particular armchair, and to a first approximation never meaningfully got up again. New restaurant? Not for him at his age. Bit of travel? Too much hassle now. A gadget the grandkids were using? He’d wave it away as though it were written in a language he’d decided not to learn. Everything was suddenly “past it” or “for younger people,” and the most striking part was how early he’d run up the white flag.

He’s still going, technically, well into his seventies now, but the truth is he’s been old for fifteen years, and the body had very little to do with it. He was perfectly capable. He simply turned to face the past, decided the interesting part of his life was behind him, and pulled the door shut on the rest. He aged the way you’d close down a shop, putting up the shutters section by section, until there was nothing of the future left open for business.

Young is just facing the other way

The young ones, the genuinely young, whatever their chronological age, are doing the precise opposite, and it’s almost embarrassingly simple. They’re still facing forward. They still start things. They retain a working curiosity about a world that hasn’t stopped being interesting to them. They make plans whose payoff is years off, on the cheerful assumption that they’ll be around to collect. There’s an old line about this, that the surest sign of a young spirit in an old body is someone who still buys green bananas. It sounds like a joke until you sit with it. To buy fruit that won’t be ripe for a week is a small, daily act of betting on your own future, of assuming there’ll be a next week worth eating breakfast in. The old, in the real sense, stop buying green bananas. The young keep filling the bowl with them.

My great-aunt Joan, young at eighty-five

My great-aunt Joan was the exact reverse of Dennis, and pretty much his contemporary. At eighty-five she took up painting, badly and with enormous enjoyment, because she’d always fancied it and saw no reason the lateness of the hour should stop her. She learned to video-call so she could pester relatives abroad. She read things that argued with what she already believed, which is a young person’s habit if ever there was one. The last proper conversation I had with her, she was somewhere north of eighty-five and telling me, in detail, about a trip she intended to take the following year.

Her body was a wreck by then, no illusions about that. She moved slowly and ached constantly and knew exactly how the story ended. But she was, in every way that the word actually means, young, because she had never once turned to face the past, and right to the end she kept the future tense alive in her mouth. She was making plans the week before she died, and I don’t find that sad. I find it close to the whole point.

The slide starts younger than you’d think

The unsettling part of all this, for me at thirty-eight, is realising that the slide into Dennis doesn’t begin at sixty. It begins with the first time you say “I’m too old for that,” and mean it, and you can hear people start saying it in their forties. Each surrender feels reasonable on its own, a sensible accounting of your limits. Stack enough of them up and you’ve built the posture of an old man while you’re still, by any honest measure, in the middle of things.

It doesn’t help that the surrenders are half handed to you. The world is forever inviting people to grow old ahead of time. Act your age. Slow down, you’ve earned it. Retirement gets sold as a finish line rather than a fresh start, as the moment you’re finally allowed to stop reaching for anything. Dennis didn’t invent his armchair on his own. He was offered it, again and again, by a culture that half expects people past a certain birthday to bow out gracefully and stop taking up so much future. Joan got the same invitations. She just kept declining them.

I’m not pretending the body doesn’t age, or that illness is some failure of attitude. Joan’s joints were no better than Dennis’s. The difference between them was never physical. It was which way they’d chosen to point. One of them shut the future down while his knees still worked. The other kept it wide open while hers fell apart around her. If Fonda is right, and watching those two I think she is, then the question worth asking yourself long before sixty isn’t how old your body is. It’s which direction you’ve started to face, and whether there are still green bananas in the bowl.