It's called the oracle problem. It's the Achilles heel of the whole idea.
And it's unsolvable. As soon as you want to trade some coin for something real, you need an oracle.
Wanna buy a flat in a world where (for argument's sake) even the ownership of that asset is tracked on a blockchain?
Let's say I come home from holidays and someone else lives there.
How do I then prove it's mine? Because it says so in some computer?
Someone has to believe that is true and let me enforce that ownership tie.
Those persons (a judge, the police, even if robots by then) are the oracle.
And a more common scenario than theft is btw legal ownership transfer.
What if I die somehow before giving the blockchain keys needed for that to someone?
How will my brother inherit the flat?
Oracle.
USDC has a central issuer that can freeze funds because that's the only way you can currently have an asset that "looks like" dollars on a crypto ledger. Someone gets a dollar, mints a unit of the bearer token, and pinky swears they'll redeem it. It's a systemic concern that calls into question the legitimacy of the system, but that's not an oracle.
they are not. The oracle is always a computer. It is a record in gov db that says you own something.
Judge and the police are the enforcers.
The biggest benefit is that you can only withdraw what you need into the real world, if you gain millions of dollars you can life off that money for the rest of your life with tiny withdrawals of $2000~$5000 or so serving as a stable stream of income which allows you to have risk free investment into real-world activites that would normally strain your finances and induce sunk cost fallacy.
Before cryptocurrency, there was no decentralized way to transfer value on the internet.
There are many types of crypto people. Some of them are not crypto people per se, but people who saw crypto as a means to an end. Among them, there are plenty of people who seem to be invested in sheer fraud.
It's also important to note that there are many sides to the scheme. There's for example the instant transactions side, and the long term bet in scarcity. For example, Russia has been leaning heavily on crypto to circumvent sanctions due to their invasion of Ukraine.
https://www.rand.org/pubs/commentary/2025/08/russias-use-of-...
> In the end, it did produce a lot of rich people out of thin air, and I guess, served its purpose.
It was not out of thin air. This is literally a grift where the people holding the bag saw their money find its way to the pockets of those who got rich from it.
This is the key issue. Crypto by itself created little to no actual additional value. Especially when it devolved into just another centralized currency with less government oversight. So the whole thing was a zero-sum game. People only got rich because they made others poor.
I'm not sure you understand how international sanctions work, particularly the scheme imposed on Russia.
For example, read up on Russia's rupee surplus
https://www.reuters.com/markets/currencies/india-russia-susp...
Regulatory arbitrage. Not all centralized institutions are fast enough to actually make use of the theoretical capabilities available to them.
Cheaper international transfers could be a specific valid use case. But I presume risk is too high for my taste.