To fully understand what Bitcoin is and it’s purpose. Read the white paper written by Satoshi Nakamoto. The creator of Bitcoin. We still do not know the real identity of Satoshi Nakamoto.
I have recently attended a Blockchain 101 workshop hosted by The Atlanta Blockchain group. During the workshop someone has claimed to have actually met Satoshi and that Satoshi is actually a woman, not a man. Who knows? Maybe Satoshi is actually an alien?
You can read the white paper here: The Bitcoin Whitepaper