I need $2m to sell expensive beer in small bottles

I'm pretty sure to have found the one thing Spain does better than everyone else, and it isn't the football, seafood, weather, or their heroic refusal to eat dinner before 10pm. It's the beer glass. Specifically, the small one.

I had just got back from a run in Spain. I was sweaty, slightly lost for the last kilometre, and sitting down to lunch at home with Maria's family, who were eating at a pace that suggested time was more of a suggestion than a hard constraint. I looked at the bottle. The bottle looked back at me. It was roughly the size of something you'd give a child at a birthday party if you were making a funny point.

I drank it in four sips. It was perfect. I got another.

This is when my brain, apparently unable to just enjoy a beer in Spain without doing something unfortunate with it, started asking questions.

The caña is Spain's answer to a question nobody in New Zealand or Australia ever thought to ask: what if a beer was just the right size? Not a challenge. Not a commitment. Not a social contract you sign with the bar. Just a drink, stupidly cold, finished before it gets warm, with a completely guilt-free "another one?" available the moment it's gone. Spain does not care how long you sit there. Spain has never cared. Spain is, frankly, magnificent about this.

A caña costs around €1.50 to €2.50 in a normal Spanish bar. It is, by some margin, the cheapest beer in Europe. Spain did not make it small to charge more. Spain made it small because small stays cold, small gets finished, and small means you order another one. The volume is in the turnover, not the margin.

This is not an accident. It is a business model.

Now consider the Australian pub. An institution built on the sacred belief that the correct amount of beer is "all of it, immediately, in a glass you could bathe a small dog in." You order a schooner, occasionally a pint if you're feeling like an absolute madman, and then you guard it for thirty minutes with the grim commitment of a man defending a flag on a hill nobody else wants. By the final third it isn't beer anymore. It's a warm, flat, vaguely alcoholic soup you drink out of sheer stubbornness, because leaving it unfinished would say something concerning about your moral fibre.

Here's where it gets interesting.

Young people are drinking less. Not none. Less. A Flinders University study of more than 23,000 Australians found abstention is rising and weekly drinking is falling, particularly among younger generations. One in five Australians aged 18-24 now drink less than monthly, double the rate in 2001. Per capita consumption is forecast to keep declining, driven by health consciousness and, let's be honest, the dawning realisation that a hangover at 35 is a two-day event with paperwork.

This is terrible news if your entire business model is "sell more beer in bigger glasses."

Now here's the interesting part for anyone building in Australia. Young Australians are drinking less but are increasingly willing to pay more for better. The caña model, applied to a premium product at a premium price point, in a market actively moving toward moderation — that's the opportunity nobody has properly claimed yet.

The caña isn't a smaller beer. It's permission. A drink you can finish completely, enjoy fully, and stop after, without the social negotiation of abandoning two thirds of a schooner like you're leaving a party before the cake.

I don't have $2 million and I have enough going on already. But I couldn't sit there in the Spanish sun, post-run, slightly delirious, watching Maria's family eat at a pace that would make a New Zealander genuinely nervous, without turning a small cold bottle into a market observation.

This is just how I'm wired. And honestly, I think it's how most good ideas actually arrive. Not in a boardroom. Not in a strategy session. Sideways. At a lunch table. On a run. Staring at something ordinary that suddenly looks different.

The best thing you can do with that instinct isn't to build every idea. It's to stay curious enough to notice them in the first place. Write them down. Sit with them. Most will go nowhere. Occasionally one won't.

The caña probably stays as someone else's business. But the question it raised, about who's building for the person who wants less, done properly, at a premium, that's worth anyone's time to think about.

Whatever your industry, that gap probably exists somewhere. The question is whether you're paying enough attention to notice it.

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