Most of what is free is sitting there, quietly unused

Free is not a lesser version of good. A great deal of what is genuinely worth having has no price attached, and the only real barrier is that nobody ever pointed at it.

Start with a small experiment. Draw a circle on a map with your home at the centre and a walk of twenty minutes as the radius. Inside that circle, for most people in most towns, there will be at least one park with actual trees, one building full of borrowable things, one noticeboard, one stretch of water or bushland or open ground, and one space that a public body maintains for anyone who turns up. None of it asks for payment. Most of it is quiet on a Tuesday. The gap between what is available and what gets used is enormous, and it is not a gap of money.

It is worth being clear about what this publication is not. It is not a lecture about spending less, and it is not an argument that buying things is a moral failure. Buying well is a real skill and a good one. Somewhere else, someone can write that. Here the interest is narrower and, we think, more interesting: the category of things that carry no price and are still excellent. Not adequate. Not a substitute. Excellent on their own terms, and in some cases better than the paid equivalent, because they are older, larger, better maintained, or simply not designed to sell you something afterwards.

The category divides fairly neatly. There is the free that is already built and paid for collectively, sitting in the middle of every suburb: parks, foreshores, reading rooms, halls, courts, ovals, exhibition spaces, lecture theatres open to the public. There is the free that is given between people: borrowing rather than buying, the box on the footpath, the shelf where things are left for whoever needs them, the neighbour with the ladder. There is the free that is knowledge: recordings, texts, instruction, decades of work released for anyone to use. And there is the free that is not free, which needs its own section and gets one.

That last category is the reason this cannot be a simple celebration. A great deal of what is advertised as free is a transaction with the price moved somewhere less visible. Attention is a price. Personal information is a price. A trial that requires you to remember to cancel is charging you for the failure of your memory, and it knows the odds. None of that makes the word free useless. It makes it a word worth reading carefully, the way you would read any other claim about value, and the habit of asking who is paying and why is the single most useful thing in this issue.

The honest complication running through all of it is that free things ask for something other than money, and often that something is harder to give. A borrowed book still has to be read. A public lecture still has to be attended on a Wednesday evening when it is raining. An enormous open archive of teaching is worth precisely nothing until somebody sits down with it repeatedly and gets slowly less bad at the thing. Access is almost never the constraint. Attention and persistence are the constraint, and no amount of availability fixes that. Pretending otherwise is how people end up with a hundred bookmarked courses and no new skill.

So the intention across these pages is practical rather than inspirational. What is actually there. How the sharing arrangements work and why some of them collapse. How to give something away so the next person can genuinely use it rather than inheriting your problem. Where the enormous free repositories of human knowledge are useful and where they quietly waste your time. And how to read the word free on a page without either cynicism or credulity. The subject is value. It happens that a surprising amount of value has no price tag on it, and that is a fact worth taking seriously.