What The Heck Is "Block chain"!?

Crypto, Bitcoin, Block chain...It seems that everywhere we turn these days we are hearing these words come up with many offering their opinion on whether Bitcoin will ever crash or keep growing at incredible levels.  One consensus is that Block chain technology is here to stay and will greatly change the way transactions are done.   

One short and one longer video explaining it for us!

Blockchain explained

One Concept in 5 Levels of Difficulty