I like the way on how you described Paypal and Bitcoin from each other. One misconception of everyone is that Paypal is the same with Bitcoin. Now it is not. Paypal is just a means of payment with fiat money that is just transferred digitally. But Bitcoin is a lot more different. Because Bitcoin itself is actually the currency, a cryptocurrency that has it's own rate against the fiat currency and is very volatile. It's transaction is also far different because it is transacted anonymously. Unlike Paypal which you can determine who transferred money for the purpose of exchange of product or service.