How is it linked to blockchain?
Blockchain is the ledger behind bitcoin. Every ten minutes all the computers on the bitcoin network process transactions and keep a copy of the full history of transactions. Bitcoin is the reward given randomly to these ledger keepers for doing this.
And what is blockchain?
Blockchain is the ledger. Bitcoin has a blockchain behind it, and so do other cryptos. It is a record of all the transaction that have ever taken place on the network and all miners have a copy, so it cannot be falsified.
Why is it so terrible for the environment?
Its not. People think it is bad for the environment because it uses energy to run the computers used to mine, but its driving investment in renewable energy. It has the highest proportion of renewable energy use of any industry in the world.
Who monitors how much it is worth?
Everyone and no-one. A bitcoin is worth whatever someone is prepared to exchange for it at that point in time. No more, no less.
How do you buy it?
You can buy it through exchanges (like Gemini), through crypto banks (like coinbase) through ATMs or from a mate. It is always better to earn it than buy it. You can get all or some of your wages paid in bitcoin though third party processors (like Bitwage).
What is XRP?
A pseudo-cryptocurrency run by the Ripple Foundation that is used for international bank settlements. I intensely dislike XRP for lots of reasons that I wont go into here.
Some great investor said to never invest in something you don't understand....I definitely don't understand it confused
To properly understand bitcoin, you need a whole new perspective on money, government and the meaning of life...people dont talk about "going down the rabbit hole" for nothing. Bitcoin is a truly revolutionary technology.