Blockchain: The Technology That Is Changing the World and Few Still Understand
Blockchain: The Technology That Is Changing the World and Few Still Understand
Nov 1, 2025
There is a technology that will transform our lives more than social networks, Big Data, or artificial intelligence.
It already exists, but most people still don’t understand its real power.
It’s called Blockchain — the chain of blocks that powers Bitcoin and thousands of cryptocurrencies — and it promises to become the new generation of the internet: the Internet of Value.
From the Internet of Information to the Internet of Value
For decades we lived in the era of the internet of information.
We can send an email, a photo, or a document in seconds, but what we send is always a copy, not the original.
And that’s fine… until we talk about money, shares, works of art, or property rights.
In those cases, copying means duplicating value, and duplicating value means fraud.
This is the famous double-spending problem, which for years blocked the creation of digital money.
The solution arrived in 2008, in the middle of the financial crisis, with the creation of Bitcoin.
For the first time, people could transfer money directly to each other, without banks or governments, and without the risk of duplicating funds.
But the real breakthrough was not Bitcoin as a currency, but the technology that makes it possible: blockchain.
Goodbye, intermediaries
Today we depend almost entirely on intermediaries: banks, governments, social networks.
They validate our identities, record our transactions, and store our data.
The problem is that this power is centralized:
they can be hacked, manipulate information, or exclude anyone they choose.
Blockchain breaks that model.
Imagine a global distributed ledger, accessible from millions of computers, where every transaction is verified by the entire network and no one can modify or delete it.
That is trust without intermediaries.
Not through belief in an institution, but through the strength of code and cryptography.
How does it actually work?
Each transaction is grouped into a block of information.
Miners compete to validate those blocks by solving complex mathematical problems.
When a block is validated, it is linked to the previous one, forming an unalterable chain.
If someone tried to hack a transaction, they would have to modify all previous blocks across millions of computers simultaneously.
In other words: it’s practically unbreakable.
Types of blockchains: public and private
Today there are thousands of blockchains.
Public ones — like Bitcoin, Ethereum, or Cardano — are open to everyone.
Anyone can participate.
Private blockchains, on the other hand, are used by corporations or governments to manage sensitive information: supply chains, medical records, etc.
One of the most revolutionary is Ethereum, created by Vitalik Buterin at age 19.
Its key innovation was smart contracts: programs that execute automatically when certain conditions are met.
No lawyers. No intermediaries.
A completely transparent digital transaction.
Wall Street is watching closely
Blockchain promises transfers in seconds and at minimal cost.
A real alternative that could replace or transform the global financial system.
Countries like Sweden and Georgia are already using blockchain to register property titles.
Procedures that used to take months now take days, with total transparency and zero possibility of forgery.
Think about Airbnb
But what if instead of a multi-billion-dollar corporation there existed a decentralized platform where the owners were the real beneficiaries?
A “B-Airbnb” where every booking cost cents instead of the current 20% commission.
That is blockchain too.
Millions of migrants send money home every year, paying up to 10% in fees and waiting days.
With blockchain, transfers can be done in seconds and for almost nothing.
Artists, musicians and writers can upload their work directly to the blockchain and get paid automatically for each use — with no labels, no platforms in the middle.
Imogen Heap, Grammy winner, already does this with her project Mycelia: the music protects itself and pays itself.
Every day we generate enormous amounts of data: location, habits, purchases, preferences.
That data has value… but it doesn’t belong to you.
Big platforms collect it, sell it, and profit from it.
Blockchain returns control to the user: your data can be yours again — and if you choose, you can even monetize it directly.
Blockchain is not a trend or a bubble.
It is a silent revolution redefining trust, money, ownership and human collaboration.
Just as the internet transformed information, blockchain is transforming value itself.
And although few understand it yet, in a few years we will look back and say:
“That’s when it all began.”
There is a technology that will transform our lives more than social networks, Big Data, or artificial intelligence.
It already exists, but most people still don’t understand its real power.
It’s called Blockchain — the chain of blocks that powers Bitcoin and thousands of cryptocurrencies — and it promises to become the new generation of the internet: the Internet of Value.
From the Internet of Information to the Internet of Value
For decades we lived in the era of the internet of information.
We can send an email, a photo, or a document in seconds, but what we send is always a copy, not the original.
And that’s fine… until we talk about money, shares, works of art, or property rights.
In those cases, copying means duplicating value, and duplicating value means fraud.
This is the famous double-spending problem, which for years blocked the creation of digital money.
The solution arrived in 2008, in the middle of the financial crisis, with the creation of Bitcoin.
For the first time, people could transfer money directly to each other, without banks or governments, and without the risk of duplicating funds.
But the real breakthrough was not Bitcoin as a currency, but the technology that makes it possible: blockchain.
Goodbye, intermediaries
Today we depend almost entirely on intermediaries: banks, governments, social networks.
They validate our identities, record our transactions, and store our data.
The problem is that this power is centralized:
they can be hacked, manipulate information, or exclude anyone they choose.
Blockchain breaks that model.
Imagine a global distributed ledger, accessible from millions of computers, where every transaction is verified by the entire network and no one can modify or delete it.
That is trust without intermediaries.
Not through belief in an institution, but through the strength of code and cryptography.
How does it actually work?
Each transaction is grouped into a block of information.
Miners compete to validate those blocks by solving complex mathematical problems.
When a block is validated, it is linked to the previous one, forming an unalterable chain.
If someone tried to hack a transaction, they would have to modify all previous blocks across millions of computers simultaneously.
In other words: it’s practically unbreakable.
Types of blockchains: public and private
Today there are thousands of blockchains.
Public ones — like Bitcoin, Ethereum, or Cardano — are open to everyone.
Anyone can participate.
Private blockchains, on the other hand, are used by corporations or governments to manage sensitive information: supply chains, medical records, etc.
One of the most revolutionary is Ethereum, created by Vitalik Buterin at age 19.
Its key innovation was smart contracts: programs that execute automatically when certain conditions are met.
No lawyers. No intermediaries.
A completely transparent digital transaction.
Wall Street is watching closely
Blockchain promises transfers in seconds and at minimal cost.
A real alternative that could replace or transform the global financial system.
Countries like Sweden and Georgia are already using blockchain to register property titles.
Procedures that used to take months now take days, with total transparency and zero possibility of forgery.
Think about Airbnb
But what if instead of a multi-billion-dollar corporation there existed a decentralized platform where the owners were the real beneficiaries?
A “B-Airbnb” where every booking cost cents instead of the current 20% commission.
That is blockchain too.
Millions of migrants send money home every year, paying up to 10% in fees and waiting days.
With blockchain, transfers can be done in seconds and for almost nothing.
Artists, musicians and writers can upload their work directly to the blockchain and get paid automatically for each use — with no labels, no platforms in the middle.
Imogen Heap, Grammy winner, already does this with her project Mycelia: the music protects itself and pays itself.
Every day we generate enormous amounts of data: location, habits, purchases, preferences.
That data has value… but it doesn’t belong to you.
Big platforms collect it, sell it, and profit from it.
Blockchain returns control to the user: your data can be yours again — and if you choose, you can even monetize it directly.
Blockchain is not a trend or a bubble.
It is a silent revolution redefining trust, money, ownership and human collaboration.
Just as the internet transformed information, blockchain is transforming value itself.
And although few understand it yet, in a few years we will look back and say:
“That’s when it all began.”
