block chain technology

I am listening to Clif High on Rogue money and trying desperately to wrap my head around thins technology. He discussed Steemit, describing it as having "long legs". I decide to revisit my account here and found that I did, indeed, earn money. My goal is to understand Bitcoin enough to make a small purchase. I certainly feel as though I was born before cars. I was born right after cars. Back then, a large family fit in the only car the family had if they had any at all.