Bitcoin is moving to $2000 today. What is the impact of this geometrical price movement to the world financial system? Let us discuss.
In just one word, nothing
In more than just one word, the price itself is meaningless outside the exchanges (since Bitcoin is not used in real life), so there is no way it can affect the world financial system. And it is the price alone which matters. If someone sold 1 satoshi for 1 dollar, would that mean anything? Apart from that, the price can easily lose all reference even between exchanges if there happens a thing which I called Bitcoin Big Rip. With higher prices we will see higher volatilities (in fact, we are already seeing them), up to a point where volatility becomes comparable to price itself. That would be a Big Rip event or moment
That's true.
Bitcoin simply as a mean of speculation won't contribute even a penny to World Economy. It will be merely a trading system outside the bracket of real world, having zero utility for the working of economy. If we wanna see it making some difference in financial system then we should concentrate on Bitcoin foundations rather than making merry on its insane speculative rise.
I would argue that Bitcoin does have a small impact on the world economy, especially with these price increases.
Some countries have put regulations in place so they can tax you when you make a profit with Bitcoin and cash it out for fiat, that has an effect on the world economy, albeit small
Just putting some tax regulations in place will not suffice
You should also make people pay these taxes, and here's something which you likely didn't even think about when you wrote your post to express your disagreement. You (as a tax agency) may have to spend more than you will receive as taxes, so the effect you are talking about may be not just small though positive (which is what you seem to imply), but, in fact, it can be negative (though as small). In other words, you might spend more first regulating Bitcoin turnover and then trying to collect taxes than the amounts that you will actually receive as Bitcoin taxes. This is the thing with Bitcoin