There is a quiet revolution happening in the plumbing of American money, and most people are watching the wrong part of it. The headlines are about price charts and meme coins. The thing that actually matters is a boring-sounding fight over reserves — whether the dollars backing a digital instrument are really there, all of them, all the time.

We think they should be. And we think the slow, contested move toward fully-reserved money is one of the more hopeful developments in finance in a generation — not because it ends the old system overnight, but because it points the system somewhere better.

Let us be precise about what is and is not happening, because precision is the whole point.

What the law actually did

In July 2025, the GENIUS Act became law. It requires that every payment stablecoin be fully backed at all times by a reserve of high-quality liquid assets — at least 100% of the value in circulation — drawn from a narrow list: cash, short-dated Treasury bills, certain repos, government money market funds, and central bank reserves. Issuers have to disclose the composition of those reserves every month.

That is a fundamentally different design from how a normal bank works. When you deposit a dollar at a commercial bank, the bank does not keep your dollar in a vault. It keeps a small fraction and lends the rest out, earning the spread. As Brian Armstrong put it plainly in his recent conversation with Dasha Burns, fractional reserve lending means that "when you deposit funds at a bank, they don’t have all of it there" — and that is precisely the arrangement that produces bank runs when too many people ask for their money back at once.

A 100%-reserved instrument cannot have a run in that sense. The dollars are there. All of them. That is not a marketing slogan; it is an accounting fact about what the reserve requirement forbids.

We are not claiming this ends fractional reserve banking

It doesn’t, and anyone telling you otherwise is selling something. The GENIUS Act regulates a category of stablecoins. Commercial banks still create money through lending exactly as before. The CLARITY Act now moving through the Senate is mostly a fight over a narrower question — whether crypto firms can pay yield on stablecoin balances in a way that competes with bank deposits.

So when we say full reserve is good for humanity, we are not announcing a finish line. We are pointing at a direction. And the direction is this: push the act of money creation toward the layer where it belongs — the Treasury and the central bank — and let fully-reserved instruments compete on honest terms with a banking model that has, for a century, been allowed to create purchasing power out of a promise.

This is the part worth getting right, so we will say it slowly.

The argument from energy

Here is the deeper reason we care, and it has nothing to do with crypto prices.

Money is a claim on energy. Every dollar you hold is, in the end, a claim on someone else’s labor, materials, and the joules required to turn one into the other. Real capital — the kind that should be lent and invested — is the stored result of energy that has already been expended: work done, goods produced, surplus saved.

Fractional reserve lending breaks that link. It allows the creation of new claims on energy that no past work has earned. When a bank lends money it does not have, it is, in effect, writing a check against the future — pulling tomorrow’s energy and resources forward into today’s consumption. The interest on that loan then demands that the future grow fast enough to honor a claim that was conjured rather than saved.

That mechanism has two outputs, and they are the same mechanism viewed from two angles. It concentrates wealth upward, toward whoever sits closest to the point of money creation. And it pulls physical throughput forward in time, accelerating the consumption of a finite resource base to service claims that were never backed by stored work in the first place.

Our position is simple and, we think, hard to argue with once stated: you should not be allowed to pull energy from the future unless the capital being lent is itself the stored result of energy. Lend what has been earned. Invest what has been saved. That is not austerity — it is honesty about what a loan is.

Full reserve enforces exactly that discipline. A 100%-reserved institution can only lend what genuinely exists. It cannot manufacture a claim on the future and call it a deposit.

Who this actually helps

This is where the "fair and balanced" claim earns its keep — and where we want to be honest rather than triumphant.

Full reserve levels the field for the institutions that already behave responsibly. Credit unions and community lenders that fund local lending out of real deposits and real savings are, under the current system, competing against entities that can summon purchasing power on far thinner backing. A monetary environment that rewards genuine reserves rather than leverage tilts the field back toward the cooperative and member-owned models — the ones that recycle surplus into the community instead of extracting it.

There is a real cost on the other side, and we will not pretend it away. If savers can finally earn a decent return on idle balances — and under these instruments, they can — some money will move out of zero-interest checking accounts. Banks worry about this, and they are not entirely wrong to. Analysts at Jefferies estimate stablecoin adoption could draw down core deposits by 3–5% over five years; the heaviest burden would fall on community banks, which supply more than half of all small-business lending. That is a genuine tradeoff and it deserves a genuine answer.

Here is ours. First, the deposit "flight" everyone fears has not actually materialized — bank deposits and stablecoins have both grown, with core deposit growth accelerating through 2025, in part because the GENIUS Act bars yield to passive holders. Second, and more importantly: the answer to "savers might leave low-yield accounts" is not to keep paying savers nothing. The answer is for banks to compete by paying a fair return. As the American Enterprise Institute has noted, nothing stops banks from issuing their own fully-reserved instruments and competing directly. If a bank’s funding model depends on the public earning zero on their own money, that is not a system worth protecting — it is the problem, described.

Why shouldn’t Americans earn a real return on their savings? We have yet to hear an answer to that question that isn’t, underneath, a defense of the spread.

A proof of concept already exists

This is not a thought experiment. Caitlin Long’s Custodia Bank in Wyoming was built from the ground up as a 100%-reserved, non-lending institution — it holds the full value of fiat deposits in reserve and does not engage in fractional reserve banking at all. Wyoming’s special-purpose depository charter, and similar statutes now in a handful of states, exist specifically to allow this model. Custodia has spent years in court fighting for a Federal Reserve master account precisely because the incumbent system does not want to let the honest version of a bank plug into the rails on equal footing.

That fight tells you everything. A fully-reserved bank is not a fantasy. It is operating. The resistance it meets is the resistance of a model defending its franchise.

The real prize: productive deflation

Here is where the whole argument points, and it is the part we are most interested in talking about.

For a century we have been taught that gentle inflation is healthy and that falling prices are a disaster to be prevented at any cost. But there is a kind of price decline that is not a disaster at all — it is the natural reward of progress. When we get genuinely better at making things, those things should get cheaper. A productivity-driven fall in prices means your savings buy more next year than this year because the world got more efficient. That is productive deflation, and it is what a sound monetary system would deliver to ordinary people as a matter of course.

The current system cannot allow it. A monetary base built on ever-expanding credit requires perpetual inflation to service its claims; it must run to stand still. Productive deflation is structurally impossible in a system that depends on pulling tomorrow’s energy forward to pay for today.

Full reserve is the necessary first step toward changing that. Get money creation onto an honest footing — claims backed by stored energy, lending backed by real savings, savers earning a real return — and productive deflation stops being a forbidden idea and starts being the obvious outcome of human ingenuity.

We are not there. The GENIUS Act is a regulated category of stablecoin, not a new monetary order. But it moves money in the right direction, it gives savers something they have been denied, and it puts a fully-reserved alternative on the table where everyone can see it.

That is worth being hopeful about. The dollars are there. All of them. Imagine running an entire economy that way.

Digital Block FX writes about money, energy, and the architecture of a fairer financial system. This post is commentary and analysis, not investment, legal, or financial advice; for decisions involving real money, consult a qualified professional.