Bitcoin allows peer 2 peer cash settlements, where users do not need to trust each other, because there is no counter party risk since they exchange something of value. Think gold, or although that is somewhat confusing, paying with bank notes (bank notes really are IOUs, but issued by a bank or central bank, so when we use them, we consider them valuable because we trust the bank, not the person paying with them). With cash payments, you dont rely on a third party, you dont take on counter party risk, you exchange things that actually have value, that you have to be sure can not be forged. Sounds trivial, but its a really difficult thing to pull off. Even in the real world, its not easy, bank notes can be counterfeit, gold may be fake, etc. In the digital world, its even harder because you also have to make sure each coin can only be spent once (its trivial to copy data). Bitcoin was the first solution to this problem. source: https://np.reddit.com/r/CryptoCurrency/comments/6ufksx/am_i_...