Blockchain is a network of computers   

 that verify and record information 

If all your data is stored on your computer, and it starts on fire, all your data is lost. Or, someone could hack in and change the data. Blockchain prevents this by distributing ledgers of recorded data across a decentralized network of computers, so there's no single point of vulnerability. Once data is recorded, it can't be edited or deleted. 

 information on decentralized blockchains 

 cannot be hacked, altered, or deleted 

And that's kinda the point of it all: Creating systems that are transparent, have the same rules for everyone, and cannot be changed after the fact. 

 Believe it or not, one of the goals of crypto 

 is to create a more equitable world 

Through decentralization. It's really at the heart of this whole "crypto experiment." A world where access to money and information is democratized - available and  cost free ... for everyone. 

 A quick glance at today's internet 

 known as Web 2.0 

Today, we exchange our personal data to participate in today's internet (Web 2.0). Google, Facebook, and other big companies make billions by selling your data in exchange for access to their services.   

 decentralized blockchains 

 are all about trust 

The goal is to eliminate third party intermediaries when exchanging anything valuable... goods, services, assets, etc. Strangers doing business can trust code to facilitate transactions as intended.  

 Decentralization will change: 

 the dynamics of internet accessibility 

The next iteration of the internet, Web 3.0, will be decentralized. No more exchanging personal data for access to apps and websites...they will run on blockchain networks powered by cryptocurrency.

 decentralization will change: 

 how we shop and pay each other (1 of 2) 

Did you know Visa doesn't issue any credit cards? Not one. Visa is a centralized network where data is transferred to confirm you have money, and then moves that money from your account to another. 

 decentralization will change: 

 how we shop and pay each other (2 of 2) 

Visa and Mastercard charge a fee to use their networks...and made over $60 Billion doing so last year. Decentralized payment networks eliminate the need for that type of third-party cost and control.  

 There's so much more to cover 

 this is all the foundation of crypto 

Cryptocurrency is what powers decentralized blockchains. Computers on the blockchain need to use computing power to facilitate transactions and are incentivized to do so by being rewarded in crypto.