Bill Gates Accepts Bitcoin, So?

This video shows how famous and rich people talked about Bitcoin (cryptocurrency), and even the World's richest man, Mr. Bill Gates, believes that Bitcoin is better than normal currency (cash) because it has no physical presence (digital) - Microsoft actually accepts Bitcoin as a payment method. What does this imply? What we know is, Bitcoin or cryptocurrencies have not yet become mainstream, however, many of those who are tech savvy and understand it are already accepting it as a form of money that can be exchanged for goods and services. The population is growing and it will spread to the masses.