Signal and noise
July 25, 2026
The financial world produces information without rest: prices, headlines, opinions, alerts, predictions, threads, videos. It produces it because it can, and because your attention can be sold.
Almost none of it deserves your attention. The problem is that noise and signal arrive dressed the same.
What noise is
Noise is information that changes no decision of yours.
The market fell two percent today: will you do anything different tomorrow? The analyst who was right once predicts another crisis: does your plan change? A stock you don’t own went up a lot: and?
Noise is not usually false. It is true and irrelevant, which is more dangerous: the mind registers “important financial information” and charges its toll of attention and anxiety, giving nothing back.
And it has a well-known statistical property: over short horizons it dominates almost everything. The daily movement of a diversified market is mostly chance; the trend that matters accumulates slowly, underneath.
What a signal is
A signal is a piece of information that deserves interpretation, because it could change something you would do.
Your emergency fund dropped below the threshold you defined. Concentration in one company crossed the weight that makes you uncomfortable. A recurring expense grew without you deciding it. Your net worth has spent two years not reflecting what you save.
Notice the shape of those sentences: they all compare reality with something of yours, a threshold, a plan, an intention. Noise talks about the world. Signals talk about your relationship with the world.
That is why nobody can define your signals for you. Without a plan of your own, all information is noise, because there is nothing to compare it against.
Three questions to tell them apart
In front of any piece of financial information, three questions are almost always enough:
1. Does it change any decision of mine? If the answer is no, it is noise, however interesting.
2. Is what it asks for within my control? Interest rates, markets, politics: outside your control. Your allocation, your saving, your debt, your patience: inside. Attention pays where there is control.
3. Will it matter in a year? Most headlines do not survive the question. The changes in your life do.
A noise diet
From these questions comes a simple practice: define a few signals of your own and silence the rest.
Choose a handful of indicators that compare your reality with your plan. Look at them on a calm cadence, monthly or quarterly. Turn off everything that arrives pushing: price alerts, headline notifications, daily summaries of nothing.
The resulting silence is not being uninformed. It is the opposite: room for what matters to be heard.
Prisvera is built around this distinction: indicators you choose yourself, compared against your own plan, with no alarms or shouting reds. Signals that deserve interpretation, and deliberate silence for everything else.