Bitcoin is digital currency or known as the father of all crypto currency that has the potential to become the new money or the electronic money around the world. Bitcoin is also the most expensive digital coin and it is almost compare to the gold but why bitcoin is created?
Here are some reason :
* To change the perception of all people about the digital currency.
* To improve the payments and transactions and in the internet world.
* To become the image of money around the world.
* To protect or hides the identity of the user, for security purposes.
* To give an opportunity to all people around the world to earn a secondary income.
* To upgrade the currency because everything in this world is now upgrading.
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Some of the points you give are correct but if someone who is not that technical would have a difficult time understanding this. If you want a simpler explanation on what bitcoin is then you can read or google about the original whitepaper published by satoshi nakamoto. And I suggest you can watch the short documentary in netflix called "banking on bitcoin". There you can understand more what bitcoin is.