Blockchain and Web 3.0 will cut out the middleman in many areas. We have selected several industries, but the list is not exhaustive.

First and foremost, we'd like to digress for a moment to clarify the difference between a public (decentralized) Blockchain, which is a truly disruptive innovation, like the steam engine or the Internet, and a private (centralized) Blockchain, which is an incremental innovation (improving an existing system by a small improvement), like upgrading from an Iphone 7 to an Iphone 8, for example.

This article discusses these two types of blockchain.

1 – Banking and payment :

Banks and payment systems will be (and already are) the first to be affected by the democratization of the Blockchain.

Man has always opted for the simplest and fastest solution, whether for transport or industry.

Thanks to the Blockchain, there's a new way to send money anywhere in the world via the Internet and a cell phone with negligible costs. It will only be a matter of time before the habits and lobbies already in place adapt too.

La DeFi (decentralized finance) will revolutionize investment and put the user at the center. Banks won't disappear, but they will adapt and coexist.

In fact, there are many banks that understand what blockchain can bring, and some of them are already investing in the technology.

2 – IT security :

Blockchain makes extensive use of cryptography, but it is also an extraordinarily assembled set of tools and technologies. This makes exchanges between individuals highly secure and impossible to modify and/or intercept. This technology, once understood by the parties, becomes a new vehicle of trust through which value, information, but also contracts and many other things can circulate.

Many sectors that require a large infrastructure to secure information can be transformed by Blockchain. Blockchain provides a high level of security (currently the best), enabling us to do away with those trusted third parties that are becoming obsolete.

3 – The laws :

The legislative environment will have to change completely. Lawyers will have to learn to code! Laws will no longer be subject to interpretation by individuals, but will be well-defined rules. Of course, this only applies to what can be "programmed". The human brain is still the best when it comes to analyzing a situation. As lawyer Simon de Chartentenay puts it so well Blockchain will not submit to the law, it will be the law" .

4 – Insurance :

The insurance industry is vast and worth billions of euros. Blockchain offers a new way of establishing trust between two parties. Thanks to the arrival of smart contracts (contracts locked on a Blockchain), we would have the certainty of a person's identity and could process certain requests in totally automated ways.

With this technology, for example, we can all save money together in a common pot and be compensated in the event of a problem: no need for a trusted third party.

On the other hand, there could be user votes to validate whether a person actually "deserves" to be compensated. This would significantly reduce intermediary costs.

5 – Real estate :

Another big market with great potential that will be completely transformed! Thanks to Blockchain, we can drastically reduce paperwork, fraud, falsification, human error and guarantee seamless transparency.

Some projects are already working on the tokenization buildings or apartments, such as the RealT.

In France, the average cost of real estate transactions is almost 14 % of the price of the property, and it is possible to reduce these costs to just 2 % of the price of the property (the rest being taxes). Savings can also be made on the platforms' structural and IT security costs.

6 – Decentralized data storage solution :

Projects such as Sia, Storj and Filecoin set up a decentralized storage network, so you never lose your data. Secondly, the cryptography behind it means that you are the only person who can read your data: it belongs to you alone, and not to the GAFAMs (Facebook, Google, Amazon, Apple,...). We can now do without these intermediaries, but to do so, we obviously still need to know about these alternatives.

7 – The medical field:

Another area that will be revolutionized, even though it lags behind today's world from a technical point of view. As explained above, the arrival of a highly secure solution for storing sensitive medical data will bode very well for hospitals. What's more, in the long term, you'll be able to go from one hospital to another on the other side of the world, and access your files with just one click, securely and confidentially.

A project like Ocean Protocol for example, is working on the creation of a confidential "veil" between medical databases and Artificial Intelligences that feed on the data, to enable true confidentiality of medical data.

8 – Voting systems :

The 2017 presidential elections in the USA raised many suspicions about computer security and vote counting.

In France, the very high abstention rate for the 2021 Regional and Departmental elections is a problem.

On the one hand, the voting system has not kept up with the times: computerized voting will enable young people to take a much greater interest in elections. But this system doesn't exist, because we don't trust private, opaque voting machines and systems.

Creating a voting system on a public Blockchain would easily put everyone on the same page and enable digital voting to take place transparently, without any loopholes or opportunities for cheating.

A number of start-ups have already begun work on these solutions, which would put an end to the opacity of voting systems, especially in certain countries.

As an example, we have the Civicpower which is working on this new voting system.

9 – Connected objects - Internet of Things (IoT) :

Blockchain will enable the various connected objects to "talk" to each other securely, without leaking your data to "hackers" but also to GAFAMs.

We could remotely manage sensitive applications in complete security, such as a home's energy management or security systems. We have a project Iota as an example of this kind of solution.

10 – Charity and Donations :

Often when making a donation, the question is whether it will reach the right recipient. Blockchain will make it possible to trace where money moves with 100 % certainty. No more possible scams, and donations will arrive directly at their destination.

11 – Energies :

If ever there was a centralized system, it's energy! EDF and Veolia manage our electricity and water consumption as they see fit. Some start-ups are working to enable us to exchange energy (electricity) between private individuals on a peer-to-peer basis, without intermediaries. Energi.

Wouldn't you rather buy your energy directly from your neighbor, who has a surplus with all the solar panels he's installed?

12 – Supply chain :

Blockchain offers seamless traceability and could make it possible to verify the authenticity of a branded bag, for example, or the complete history of the path a simple fruit or vegetable has taken.

We were able to see this tool being set up with Carrefour for their products, click here to find out more.

13 – Carpooling, hotels and the automotive industry:

Surely you're familiar with ride-sharing giant Blablacar, platform Uber or accommodation platform Airbnb? Well, Blockchain will put these companies at great risk. There are already applications that use Blockchain to eliminate these trusted third parties and guarantee people's identities and payments.

Here, for example, is a platform that aims to dethrone Airbnb by offering a decentralized version on Blockchain: Dtravel.

You'll also be able to pay for tolls, petrol and parking with ease. Giants Renault and bank UBS are already on the case. Renault wants to use the Blockchain to accurately track the record of maintenance carried out on the brand's cars. It will be very easy to check whether a car is up to standard or has undergone unauthorized modifications.

14 – Identity checks and the airline industry :

British Airways has already announced that it has begun a project using the Blockchain to identify passengers more easily. Having certain information on the Blockchain would make the identification process quicker and more secure. More security and time saved, that's the world we're moving towards.

15 – Online music :

Blockchain will be able to repair the damage caused by the centralization of platforms with the internet in the past. It is now possible to pay authors/creators/composers directly, without going through third-party platforms like Spotify. Each time you listen to a track, you pay a few cents of value directly to the authors/creators/composers via a blockchain.

16 – Online shopping :

Currently, we rely on intermediary sites to make our online purchases. Once again, Blockchain will connect buyer and seller in a simple way by cutting out the middleman. You get a cheaper product and the seller sells his product with more margin: win/win.

17 – Financing techniques and fundraising :

Sites like Indiegogo have had their day. Although they revolutionized their industry, their days are numbered. The ICO (Initial Coin Offering) craze in 2017 has greatly revolutionized this industry. Companies ask to receive funds in Ether instead of dollars. It's faster, allows everyone to participate without discrimination and is completely transparent. Many crypto projects have raised millions of dollars using this method.

18 – Certification :

Numerous highly promising projects aim to use the Blockchain to verify the validity of a degree and work experience, especially for large American schools that suffer from this kind of fraud. The end of embellished CVs is near. We have the project BCdiploma as an example, but also EvidenZ.

For identity certification, so that we no longer need a password to identify ourselves when visiting the doctor or at the door of our home, we have, for example, the French project Uniris.


All these sectors have the potential to be revolutionized by this new technology, but that doesn't mean things will happen overnight... There will be a lot of resistance from parties positioned as trusted third parties. But mankind will always choose the most efficient solution over time.

We hope that Blockchain will be used intelligently to put the user back at the center and decentralize many systems. The Internet could have enabled this, but it ultimately centralized systems.

It's up to users to choose the type of system they want. This choice will be made by using the many alternative, decentralized systems we've talked about (or others), or by remaining in this paradigm of useless trusted third parties we can't ultimately trust.

Tristan