Some time ago I didn't even know what it was. Now, I found blockchain fascinating. It has the potential of revolutionize everything we know today.
If you want to learn about it (you should), watch the video below:
For those who don't know (three weeks ago I didn't), blockchain is the distributed ledger technology used by cryptocurrencies like Bitcoin. It provides the decentralized thing we often hear about.
But it's more than "just" cryptocurrencies. Blockchain can be used in different contexts, like social media.
So that's it. See the video and comment what you think.