Imagine a snow-covered mountain rising above a valley. As the snow melts, streams begin to flow downhill. Hundreds of homes sit below, each supplied by that water. Between peak and valley lies a network of pipes, pumps and reservoirs, built by companies that route, meter and deliver the flow to each doorstep.

If you live in one of those houses, your attention naturally settles on the tap. You watch the pressure, inspect the local plumbing, judge the company that bills you. But the network does not produce a single drop. It collects, channels and distributes what originates at the peak. If the snow stops melting upstream, no amount of midstream engineering can deliver water downstream.

Investing works the same way. The real economy sits upstream, where businesses turn labour and capital into wealth. The financial industry is part of the real economy too, and creates wealth of its own. But it also sits midstream: securities, markets and institutions that package, price, exchange and distribute claims on that wealth. Investors sit downstream, and because the middle layer is what they see every day, they spend their lives watching the tap: price movements, central bank decisions, the products they are sold. In this framing, the market appears to be where the action is.

But markets do not create the wealth they distribute. They are the pipes.

So where do returns actually come from?

To answer that, it helps to strip the economy back to its simplest form. Two producers: one catches fish, the other grows crops. Each produces just enough to survive. Nothing is left over.

Now a third participant provides capital for better tools: a larger net, a plough. With them, the same effort produces more. No one works harder, yet output rises. That increase is wealth that did not exist before, and it is shared between those who provided the labour to produce it and those who provided the capital.

This is the point that is often missed. Wealth is not a fixed stock passed from hand to hand. It is created, and it keeps being created.

The engine is productivity: getting more, or better, from the same effort. Not only more fish from the same day at sea, but better products, and products that did not exist before. Across millions of businesses, these gains accumulate into economic growth.

Because wealth is created, investing is a positive-sum game. Over the long run, those who provide capital, taken together, should expect to be paid, because the economy they finance keeps producing more. Making money from investing is not an anomaly. It is the normal reward for financing productive activity.

Investors do not access this wealth directly. The further capital moves from its source, the easier it becomes to focus on the paper claim rather than the underlying activity.

The real economy determines how much wealth exists to be claimed. Markets determine who claims it. You cannot compete in the second without understanding the first.

The mountain sets the size of the flow. The midstream system can redirect it, divide it and determine who receives how much, but it cannot manufacture the water it distributes. Over the long run, the wealth investors capture in aggregate must ultimately come from the wealth the real economy creates.

That is also why investing is a competition. The wealth created upstream grows over time, but it is not unlimited. If it were, there would be nothing to compete for. The contest is over how much of that flow each investor captures.

Any company's income statement shows the division taking place. Revenue arrives at the top, and most of it leaves again immediately as payments to suppliers, which become the revenue of other companies where the same division repeats. What remains is what this business itself added, and it is divided among the parties who made the activity possible: salaries to those who provided labour, interest to those who provided credit, rent to those who provided property, profits to those who provided equity capital.

Those lines are where the two competitions are settled. Salaries are what the labour competition pays out. Interest, rent and profits are what the capital competition pays out, whether the capital is lent or owned. Taxes stand outside both, taken by levy rather than earned by claim, and returned to the economy through public spending.

For anything you own, ask: how far upstream does the money actually come from? Every return begins as something plain: a profit earned, an interest payment made, a rent collected. From there it is packaged into securities, priced in markets, exchanged and repriced, and by the time it reaches an investor it may look very little like the profit, interest or rent standing behind it. That transformation is worth understanding closely, and it is the subject of the chapters that follow. But it can only be understood from the source. You cannot judge what the pipes are doing to a flow you have never located.

There is a second question, and it is the one that tells you how you are doing. Over any period, the real economy produces a certain amount of wealth for the owners of capital. The question is how much of it reached you.

Most people judge results in absolute terms. Earn 10 per cent in a year and it feels like a good year. Whether it was depends on the risk taken to earn it. With little risk, 10 per cent might be an excellent result. But suppose you took the same risk as the market, and the market returned 15. The useful question is what happened to the other 5. It did not disappear. Others captured it.

As the CEO of your own capital, you need feedback. No company is run without someone measuring how it performs. The same function has to exist for your own capital, whether you do it yourself or require it of those assisting you. Without feedback there is no way to know whether you are competing well. It begins with being able to identify the wealth produced, and to track how much of it reached you.

If you cannot see where wealth is created, you cannot compete for it.