If you hold index funds, you are already using a savings account that beats inflation. That is what the S&P 500 quietly is for the people who own it: not just an investment, but a place to store value against a dollar designed to lose it. Park money there, leave it alone, and over any long horizon it outruns the currency in your checking account. It is, in effect, a deflationary money — something that gains value by being held — sitting inside a brokerage app.

Which is worth pausing on, because the standard argument says this shouldn’t work. The fear is that if money gains value simply by being held, no one will spend it: purchases get deferred, demand collapses, the economy freezes. It is the usual case against Bitcoin, and against deflation in general.

But we can watch it not happen. Millions of people hold an appreciating, inflation-beating asset right now, and they still spend. The entire financial-independence movement is built on exactly this: accumulate an asset that compounds faster than the dollar, then spend it down to fund a life. Nobody hoards to zero — they accumulate in order to decumulate. Holding a deflationary store of value does not stop people from buying groceries, paying rent, or retiring early. It just gives them something better than cash to spend from. The spiral never comes, because people have lives that happen now.

So the S&P works as a de facto savings account. The problem is who gets to use it.

That door only opens for the roughly 60% of American households who own equities. To walk through it you need income beyond your bills, a brokerage account, and enough financial confidence to use one. The other 40% are left holding the depreciating dollar, because it is the only money they have. Inflation is a tax, and we have quietly built a system where the people best equipped to escape it do, and the people least equipped to escape it can’t. The FIRE playbook is real and it works — but it is a playbook for people who already have surplus, access, and know-how.

A true deflationary money erases that divide. A base money that simply holds its value asks for none of the prerequisites: no minimum balance, no account to open, no permission, no know-how. Everyone who holds it is saving by default — whether or not they ever buy a single share of anything. The protection the index investor buys for themselves would belong to the person living paycheck to paycheck too, in the currency they already earn and spend.

That is what Bitcoin is reaching for. Its supply is fixed at 21 million coins, so there is no issuer who can print more and dilute what you hold — the same anti-erosion property that makes the S&P attractive, without the volatility of owning companies. And it needs no gatekeeper: no brokerage, no bank approval, no income test. A phone and an internet connection are the whole prerequisite. I won’t pretend it is finished — it is still volatile, still early, still being adopted, and the stable everyday savings money is the destination rather than the current state. But the two properties that matter, no debasement and no gatekeeper, are already true today for anyone who wants them.

The S&P 500 proved the demand: hundreds of millions of people already treat an appreciating asset as the place they store their money, and the economy did not seize up. It just left out everyone who couldn’t get in the door. A deflationary money finishes the job — it turns a savings account for the few into one nobody can be locked out of.