At this time Bitcoin is known to almost all humans on earth, but saving money in Bitcoin will not reduce the economy. Humans certainly have needs that they must buy such as food, drinks, clothing, and other needs that they must buy, therefore Bitcoin will not reduce the economy. Saving money in Bitcoin is also important because the price will always increase from year to year, while if you save in a bank the value of money will remain as much as we save in the bank and all the goods we buy from year to year will be more expensive so the value of our money in the future will decrease, that's why we are required to save some money in Bitcoin.