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There is a strange new ritual in modern investing. A person finds a company they like, builds a model, writes up their reasoning, and then, instead of quietly buying shares and going about their life, they post the whole thing on Twitter. Sometimes it is a thread with twenty posts. Sometimes it is a screenshot of a spreadsheet. Sometimes it is just a ticker and a rocket.
The question nobody seems to ask is whether this act of publishing changes the thesis itself. Not the stock. Not the market. The thinking behind it.
Value investors, the old fashioned ones who read footnotes and annual reports the way other people read novels, have a quiet answer to this. And it is not the answer the internet wants to hear.
The thesis as a living thing
Before we get to the value investor answer, it helps to understand what an investment thesis actually is. It is not a prediction. It is not a prayer. It is a specific argument that says: here is a business, here is what it is worth, here is why the market has it wrong, and here is what would have to happen for me to change my mind.
That last part is the one everyone forgets. A real thesis includes the conditions under which it dies. It is an argument that has been pre scheduled for its own funeral if the facts turn against it.
This is why value investors have historically been private about their work. Not secretive for the sake of mystery. Private because thinking is a fragile activity, and the moment you attach an audience to it, something subtle starts to shift. The thesis stops being a tool for understanding a business. It starts becoming a tool for managing how you look to other people.
What Twitter does to your brain
Once you say something out loud, in front of others, defending that statement becomes tangled up with defending yourself. The belief and the ego fuse. Changing your mind stops feeling like learning and starts feeling like losing.
Now imagine doing that with money on the line, in front of thousands of strangers, some of whom are rooting for you to fail just because they find it entertaining.
The problem is not that Twitter is mean. The problem is that Twitter is a theater, and theaters have audiences, and audiences change the performance whether the performer realizes it or not. You start writing for applause. You start leaving out the parts that make you look uncertain, because uncertainty does not get retweeted. You start smoothing over the ugly edges of your reasoning, the parts where you genuinely do not know something, because admitting that feels like handing ammunition to critics.
What began as an attempt to understand a business has quietly become an attempt to win an argument. And those are very different projects.
The value investor answer
Ask Warren Buffett why he does not tweet his positions in real time and he will probably laugh. Ask Seth Klarman, or Howard Marks, or any of the serious old guard, and the answer will be some version of the same thing: because the moment you tell everyone what you think, you have made it harder to think clearly about it later.
This is not about keeping secrets from competitors. Most value investors are happy to discuss their ideas years after the fact. It is about protecting the private space where doubt is still allowed to exist. A thesis you have not publicly committed to can be quietly abandoned when new information arrives. A thesis you have broadcast to fifty thousand followers cannot. Or rather, it can, but the cost of abandoning it now includes a tax on your pride, and pride is the most expensive thing in investing.
There is a lovely irony in this. The people who look the most confident on Twitter are often the ones who have given up the most freedom to change their minds. The loud ones are the trapped ones.
A borrowed lens from somewhere else
This is not just a finance problem. Writers have known about it for a long time. There is a reason serious novelists do not post their rough drafts on social media. Not because the drafts are embarrassing, though they often are, but because once a draft has been seen, the writer starts unconsciously defending it instead of improving it. The audience becomes a kind of gravity that pulls the work toward whatever version was first applauded.
Scientists face the same trap. A researcher who has publicly announced a hypothesis is, statistically, slower to accept evidence against it than one who has kept the hypothesis private. The data does not change. The researcher does.
Investing is, at its best, a kind of applied epistemology. You are trying to figure out what is true about a business in a world that is constantly lying to you, including the part of the world inside your own head. Anything that makes that job harder is a problem. And publishing your thesis to an audience that is scoring you in real time is, almost by definition, something that makes it harder.
The counterargument, and why it is weaker than it looks
Now, the people who publish theses on Twitter have a reasonable response to all this. They say that writing in public forces them to be clearer. That getting pushback from strangers sharpens their thinking. That the discipline of explaining an idea to an audience exposes the parts they did not fully understand.
All of this is true. And all of it misses the point.
Yes, writing clearly is good. But you can write clearly in a private document, or a letter to a friend, or a journal that nobody else will ever read. The clarity comes from writing, not from publishing. The audience is not a necessary ingredient. It is just the ingredient that also happens to bring along the ego, the theatrics, the need to look right, and the slow poisoning of your ability to change your mind.
As for sharpening your thinking through pushback, this is only true if the pushback is high quality. On Twitter, it mostly is not. What you get instead is a flood of people who did not read past the first post, people who are arguing against a caricature of your idea, and people who just want to pick a fight because they are bored. Sorting the signal from the noise takes more energy than you would have spent just thinking carefully on your own.
There is a reason Charlie Munger spent most of his life reading in a chair instead of broadcasting his opinions to strangers. He understood that attention is a finite resource, and that spending it on defending your public image is attention you are no longer spending on the actual business.
The one exception
There is a version of public writing that does seem to work, and it is worth naming because it is the exception that proves the rule. It is the long form, slow, after the fact write up. The kind where a value investor describes a position they entered a year ago, explains what they were thinking, and honestly catalogs what they got right and what they got wrong.
This works because the thinking is already done. The thesis has already survived, or already failed, out in the world. There is no live ego at stake anymore, because the outcome is mostly known. The writing becomes a teaching tool instead of a performance.
Notice that this is almost the opposite of the Twitter thread. It is slow instead of fast. It is retrospective instead of real time. It is written to teach instead of to impress.
The quiet conclusion
So, does publishing your investment thesis on Twitter make it better or worse? The value investor answer is that it almost certainly makes it worse, and the reason has nothing to do with secrecy and everything to do with psychology. Publishing turns a private act of reasoning into a public performance, and performances have their own logic that has nothing to do with being right.
The strange part is that most people who post their theses know this on some level. They can feel themselves getting defensive in the replies. They can notice themselves doubling down when they should be backing off. They can sense the pull of the audience shaping what they say and eventually what they believe. They just cannot stop, because the attention feels good, and because quitting would look like losing.
This is the part the old value investors understood that the new ones keep rediscovering the hard way. The best value investing is done in a quiet room, by a person who has made a deal with themselves that the truth about the business matters more than the truth about how they look. Twitter is a lot of things, but it is not a quiet room.
And the people who figure this out, usually after a few painful public reversals, tend to do the same thing. They stop posting the thesis. They start posting the lesson. And then, eventually, they stop posting altogether, because they have remembered what they were trying to do in the first place.
They were trying to think. It turns out that is still a private activity, no matter how loud the timeline gets.
