Even if bitcoin does not become the only world currency, it will function on a par with the dollars, euros, etc., that are customary to us. A few years ago we could doubt whether bitcoin's success would be successful, but now it's obvious, too many people are involved in the field of crypto-currency, too many investors, and this is not the limit. Bitcoin will soon be very convenient in travel, for anonymous purchases, and it will not be anything surprising, but quite natural. I really look forward to it in my country.