Why do people insist on this? A rate of inflation + 0.5% is double of a rate of inflation + 0.25, that is double of a rate of inflation + 0.125%, that is doubl

Why do people insist on this? A rate of inflation + 0.5% is double of a rate of inflation + 0.25, that is double of a rate of inflation + 0.125%, that is double of... You can have as many steps as you want.