How to explain to an ordinary person what blockchain is?

Good day to all!
Due to the fact that I work with the blockchain and do PR, as well as promoting the relevant blockchain platforms to the masses...
I noticed such a trend that 99.9% of society still do not know what blockchain is and what it is eaten with...
Yes, and try, explain to the first person you meet what it is ...
But we must somehow try, because the inevitable future lies ahead ...
Digital future...
Where WEB3 and blockchain will rule the world, and perhaps it will be a centralized blockchain!
Okay, let's imagine this scenario...
Walking down the @slon21veka street, and meeting him...

-Oh!, Hi @slon21veka!
-Hello, Fedor!
-Listen, how is your cryptocurrency or how is it, blockchain?
-You know? Amazing!
-I still don’t understand, but what is it all the same and what is the essence of the blockchain?
-Here, look (takes out a smartphone and types in Google)

The essence of the blockchain is to create a decentralized network consisting of a chain of blocks with information. Each block contains data about transactions, records or events linked to each other by cryptographic methods. Thus, the system is able to automatically check the validity of any transaction.

-Everything, I understand, thank you!
-What did you understand?
**-Yes, I did not understand anything! Some kind of decentralization, block chains, transaction data... Can I somehow make money on this? And then I got tired of going to work every day and working and my uncle ... **
-You can earn anywhere and anytime! I see that you still don’t understand what blockchain is and why... Let’s sit down and try to tell you more deeply!

I had a saved paragraph from the internet somewhere...
And here...

Blockchain is a digital database of information that reflects all completed transactions. All records in the blockchain are presented in the form of blocks, which are interconnected by special keys. Each new block contains data about the previous one. Blockchain is used to store and transmit digital data

-Or let's do it wrong ... Look, you have the Internet!
-Let us suppose...
-Do you want to save information.. text or document, no matter what...
-So, continue!
-There are hackers who can steal your information at any fine moment...
-Well, yes, it's a frequent occurrence...
-So, as I said, the blockchain was created so that every information, transaction, no matter what, was stored in the form of blocks that are interconnected by special keys. At the same time, each new block contains data about the previous block, it cannot be damaged....
It will be practically impossible to steal information, because in each block there are keys and they need to be confirmed! There will be no such thing that you fit into one block and want to break or change something there ...
Other blocks won't give it...
-Wow, protection at the highest level! Where can blockchain be applied?
Well, at the moment, the most popular use of blockchain is cryptocurrencies, but...
But also, if I'm not mistaken, they use blockchain in smart contracts, the medical industry, intellectual property protection, online voting, supply chain management...
In general, there is room to grow!
But there is one very important problem in using the blockchain in a wider range...
Not enough scalability!
-How is that?
-There are smart contracts, which means that for each action, you need to create a separate smart contract! Let's take car manufacturing as an example...
Do you know how many operations it takes to create one car?
-There are millions of transactions...
-That's why millions of smart contracts are a pile of unnecessary information...
For this, you need a scalable blockchain!
-Is there one?
-Yes, I work with one!
-PraSaga?
-How do you know?
-Following your social networks, telegram channels, discord...
-You are on the right track!
There will be questions, always contact!
Blockchain from the outside seems very complicated, but on the other hand, the blockchain has a lot of possibilities!
And yes, blockchain is inevitable!
Someday, the word blockchain and #web3 will be like a common concept...
In the meantime, we are creating the future by trial and error!
Today is difficult - but tomorrow is familiar!