A policy-controlled market, whether it's today's investment environment or the 1930s or the 1870s, places enormous pressure on investors ... for yield and consistent return, to be sure, but even more so for a resurrection of the investment beliefs that held sway in "normal times", for an escape from the prison of extraordinary monetary policy and its grip on market behavior. Pressure and time. That's all it took for the Shawshank Redemption and that's all it takes for our modern market redemption. Or it least that's all it takes for the hope and the escape attempt. Let's see if we're as successful as Andy Dufresne.

When suitably crystallized, an investment hope takes on a different form. It becomes an investment theme. Today the investment hope that has crystalized into an investment theme is the notion that soon, just around the corner now, perhaps as a result of the next mystery-shrouded meeting of the world's central bankers, perhaps as a result of the U.S. election this November, we will enjoy a coordinated global infrastructure spending boom. Of course, this isn't deficit spending or another trillion dollar layer of debt, but is "investment in our crumbling infrastructure." This isn't a mirror image of China's massive over-build in empty cities or of Obama's shovel-ready infrastructure projects from 2009-2010, but is "really a free lunch", to quote Larry Summers, where there's never a Bridge-to-Nowhere or an Airport-of-One. Or so the Narrative goes.

A Narrative theme is a theme of hope, pure and simple. And because hope can and will emerge without any evidence or support from the real world, a Narrative theme can work from an investment perspective even if it's a non-event in the real world or, stranger yet, an abject failure in the real world. In exactly the same way that you can invest alongside central bank efforts to prop up markets and drive asset prices higher without believing in your heart-of-hearts that anything these bankers say is even remotely true, so can you invest alongside a Narrative theme without believing a single word of the Narrative itself.

And to be clear, my personal belief is that Larry Summers and the rest of the "public infrastructure projects are great investments!" crowd are sniffing glue. You're pulling forward future economic activity, that's all. Read the latest from Howard Marks if you don't believe me. I'm not saying that government spending is bad — on the contrary, government spending is absolutely necessary to preserve life, liberty, and the pursuit of happiness, and there's certainly a societal "return on investment" from government spending — but don't tell me that there's this huge productivity-enhancing, non-quotation-marked economic return on investment generated by the government building stuff that the private sector doesn’t want to build. Don't tell me that what China is doing with their infrastructure is "mal-investment", but that if we do it ... well, that's different, because, you know, our infrastructure is "crumbling" instead of "gleaming" the way it is in ... umm ... China. Yes, LaGuardia is a miserable airport. So stipulated. But there are infinitely greater productivity gains to be had from changing our insane TSA regulations and reducing security lines than by building a new Terminal B. If you want a massive Keynesian deficit spending program on top of our massive current debt ... fine, make the argument. There's an argument to be made. But don't put a specious "investment" wrapper around it.

But it's exactly that specious wrapper — the Narrative — that makes all of this work as an investment theme. If a massive public works program were couched in its traditional Keynesian or neo-socialist form (you don't see Bernie Sanders talking about the economic ROI of his infrastructure proposals), it wouldn't have a chance with the Wall Street Journal crowd. But, hey, if a public works program is "a smart investment" … never mind that this is about as smart an investment as Moonbase Alpha (yes, I had the Space: 1999 lunchbox) or perhaps a gigantic hole in the ground ... well, then, let's muster up the usual suspects at CNBC and the Wall Street Journal op-ed staff to get behind this, and let's convince ourselves that Donald Trump wouldn’t be a nut job president, even though every shred of evidence and plain common sense screams the contrary, because he's, you know, a "builder."

It's all based on hope for real economic growth and an escape from policy-controlled markets, a hope that springs in every investor's heart given enough pressure and enough time. It's a hope that, as Sir Francis Bacon said, makes for a good breakfast but a bad supper. We're in the breakfast phase of this Narrative theme still, as Missionaries (to use the game theory term) like Larry Kudlow beat the drum louder and louder for a big infrastructure spend, and it's a drumbeat that will continue to grow until there's a reality check or a powerful Missionary creating Common Knowledge to knock it back. That will be the dinner portion of this Narrative theme, and it will be an unpleasant meal. But I don't see dinner being served until well after the U.S. election, no matter who takes the White House or how the balance of power shifts in Congress, and it might be a year or two later before the thin gruel of dashed hopes is served up to markets. So even though I think this U.S. public infrastructure build has barely a whiff of merit from an economic policy perspective, even though I think its net effect once implemented will be to make the ultimate debt reset that much more horrific, I also think it's a highly investable idea. Because that's the way you play the Common Knowledge Game.

Common Knowledge is information that everyone believes everyone has heard. It’s why executions were once held in public, not so a big crowd can see the guy getting hanged, but so the crowd can see the crowd watching the guy getting hanged. It’s why political debates are filmed in front of a live audience. It’s why sitcoms have laugh tracks. It’s how a relatively small but highly televised protest in Cairo’s Tahrir Square toppled Mubarak. It’s why the Chinese government still cracks down on media pictures of the Tiananmen Square protests, now more than 25 years old. Common Knowledge is the game theoretic concept behind the irresistible power of the crowd watching the crowd, and as a result Common Knowledge construction by governments, corporations, and yes, central bankers is one of the most potent instruments of social control on Earth.

The Common Knowledge Game is the game of markets, and it's been internalized by good traders for as long as markets have existed. What you think about the market doesn't matter. What everyone thinks about the market (the consensus) doesn't matter. What matters is what everyone thinks that everyone thinks about the market, and the way you get ahead of this game is to track the "Missionary statements" of politicians, pundits, and bankers made through the four media microphones where the Common Knowledge of markets is created: The Wall Street JournalThe Financial Times, Bloomberg, and CNBC. It's what Keynes called The Newspaper Beauty Contest, and it drove the policy-controlled markets of the 1930s exactly as it drives markets today. Is it an easy game to play? Nope. But you don't have to be a professional poker player to avoid being the sucker at your local game. You don't have to be a wizard trader to be aware that the Common Knowledge Game is being played, and that it's driving market outcomes.

Red and Andy survived more than 20 years in Shawshank prison because they never lost hope. But they were smart about the concept of hope. They didn’t let hope consume them to take stupid chances. In Red’s words, they never let hope drive them insane. That’s the same balancing act we all need to adopt here in Central Bank prison. Hope is a good thing. Hope is a human thing. But hope is also a social construct that is used intentionally by others to shape our behaviors, in markets as in life. That’s the awareness we need to be hopeful survivors here in the Silver Age of the Central Banker, and that’s the awareness I’m trying to create with Epsilon Theory.