I was held by my high school friend to talk about Bitcoin.
His background about bitcoin is that Bitcoin being like a stock in a stock exchange, except that it is decentralized such that nothing governs over it to control the price or supply.
I was stunned by his question that he asked me,
"Does Bitcoin create a hole in the cycle of money on the economy?"
"What do you mean?" I asked,
"Generally, when you buy something for example a car using a fiat currency, a part of your payment returns to the government as tax."
"Carry on." I said,
"Well imagine this, let's say for example I bought a pen using bitcoin and not any fiat currency. Now how does the money return to the government through tax?"
Me being not economically literate (I do not research further through this stuff, I just know the law of supply and demand lol) could not answer his question, but I proposed that
"Well, maybe you've got to pay additionally using fiat currency to cover the tax that you've bought."
He agreed to that as he thought that might be possible, and then he continued
"That might be possible, but do you imagine that if everyone in the planet uses cryptocurrency the power of the government will weaken?"
"In what terms?" I followed,
"If everyone in the planet uses cryptocurrency to transact, then eventually no one / lesser people will get interested to fiat currency at all, until such time that almost everybody converts their fiat money into cryptocurrency, then nothing would return to the government as a form of tax. Now the government wouldn't have that much money to create infrastructures, etc."
This is what I need to know in order to answer him, because I need help from experts from around the field because I do not know much about economics. But I am interested for the answer for added knowledge to how Bitcoin and Economics work.
Here in my country it is very funny because no matter how big the taxes are there were NO important infrustractures created unless it almost election time. Where a good road will be destroyed to build a new one and a damaged road left unattended for years unless election is coming. Also with the taxes of the people only those rich and greedy politicians becomes richer and the poor becomes poorier. This has been decades after decades of political dynasties ruling over my democratic country so all in all i dont really believe that bitcoin can creat a hole in the cycle of economy. It is actually the greedy and evil people who does.