Introduction
“It's backed by nothing”, “it's virtual”, “it's hot air”: that's the number-one objection to crypto, and it's a fair question. To really answer it, you have to go back to an older question: what gives any currency its value in the first place? Once you've understood that, Bitcoin's value becomes a lot clearer — no hype, no promise of gains.
First: what is a currency's value?
Take a 20 € note. In itself it's a piece of paper worth nothing: you can't eat it or wear it. Yet you can swap it for a meal or a book. Why? Because everyone around you agrees to do the same. A currency's value doesn't come from the object, but from the collective agreement to use it.
A currency does three things: it lets you exchange (pay), measure (show a price) and store (set aside for later). What holds it up is a mix of trust, shared usage and scarcity. Remove one of those ingredients and the currency wobbles: that's what happens in major bouts of inflation, when too many notes are printed and everyone has too many — they lose their value.
Value is like a language
English only has value because millions of people use it. On its own it's useless; shared, it lets you do anything. A currency is the same: its strength comes from the number of people who accept it, not from what it's made of.
The euro has value because it's backed by gold held at the central bank.
Actually : Not for a long time. Like almost every modern currency, the euro is backed by no metal: its value rests on trust in institutions, the fact that you pay your taxes with it, and usage by hundreds of millions of people. “Backed by nothing physical” is the norm, not the exception.
A short history of money
At the very beginning, people bartered: three hens for a sack of wheat. The problem: the other person had to want your hens at the exact moment you wanted their wheat. Awkward. So humans looked for an in-between object that everyone accepts — a “currency”.
Many things have served as money: shells, salt, beads, cattle. Then precious metals, gold above all, took over almost everywhere. Not by chance: gold is scarce, doesn't rust, divides, travels and is easy to recognise. Then came banknotes (handier than lugging gold around), and finally the digital money in your bank — the numbers on your account that you never actually touch.
The lesson of this history: the form of money keeps changing (shell, gold, banknote, numbers on a screen), but the qualities that make a good currency don't.
What makes a good currency
If gold won out for thousands of years, it's because it combined several qualities. They're the same ones you can check on any currency, yesterday as today. Keep them in mind: they're the key to judging Bitcoin right after.
- Scarce: you can't create it at will, otherwise it loses its value.
- Durable: it doesn't deteriorate over time.
- Divisible: you can pay for a coffee as easily as for a house.
- Portable: easy to move and to send.
- Verifiable: hard to counterfeit, easy to authenticate.
Every currency's weak spot
Gold is scarce and durable, but heavy and hard to send across the world. Banknotes are handy and divisible, but can be printed without limit. Every currency is a trade-off between these qualities — none was perfect… until someone tried to combine them all in digital form.
Why Bitcoin ticks the boxes
Bitcoin was designed to bring these qualities into the digital world. Its big innovation is scarcity: its code will never allow more than 21 million units, and no one — no company, no government — can create more. It's the first time we've had verifiable scarcity for something digital, which usually copies endlessly. (How the network guarantees this, you'll see in the module on blockchain.)
For the rest, Bitcoin is very well equipped: divisible (one bitcoin splits into 100 million tiny units, the “satoshis”), portable (you can send some across the world in minutes), durable (the network has run non-stop since 2009) and verifiable (anyone can check every unit). That's why it's often nicknamed “digital gold”.
Here's the real answer to “it's hot air”: Bitcoin isn't magic, but it has the same qualities as the currencies that have lasted throughout history — with scarcity even stricter than gold's. Its value doesn't come from nowhere: it comes from these properties, combined with the trust and usage of more than 100 million people.
Gold you could send in a message
Imagine gold with all the qualities of the metal — scarce, durable, recognisable — but that you could send as easily as a text message, and whose authenticity you could check in seconds. That's the idea behind “digital gold”.
Crypto isn't backed by anything, so it's worth nothing.
Actually : “Backed by nothing physical” is also true of the euro and the dollar. Bitcoin's value comes from its properties (strict scarcity, durability, verifiability) and the number of people who use it — exactly like other currencies, gold included.
Value isn't price: stay clear-headed
Careful not to mix things up. Having value doesn't mean the price only goes up. Value comes from the properties we've just seen; the price, on the other hand, is set every day by supply and demand — and it can be very volatile, rising and falling sharply.
Programmed scarcity therefore guarantees no gain: it's a quality of the currency, not a promise of returns. That's exactly why how you invest matters as much as what you pick — we cover this in the Investing without fear module. Understanding why Bitcoin has value is the foundation; keeping a cool head about the price is what comes next.
In one sentence
Bitcoin has value because it combines the qualities of a good currency in a scarce digital form — but its price stays volatile, and nothing guarantees it will rise. Value isn't price.
From “understanding” to “holding a little”
The best way to really grasp all this is to hold a small amount and watch. You don't need a large sum: a few euros are enough to go from theory to experience, stress-free. You're not buying to “get rich” — you're buying to understand from the inside what you've just learned.
Hold your first fraction of Bitcoin
With Deblock, you can buy a small fraction of Bitcoin in minutes, from just a few euros, in a regulated setting and without jargon. Start small, hold for the long term, and let time teach you the rest.
Open my Deblock accountWhat you should remember
- 01A currency's value doesn't come from the object, but from its scarcity, trust and shared usage.
- 02No modern currency (the euro included) is backed by a metal: “backed by nothing physical” is the norm.
- 03Bitcoin combines the qualities of a good currency in digital form, with strict scarcity (21 million max): hence “digital gold”.
- 04Value isn't price: scarcity guarantees no gain, and the price stays volatile.
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