Inflation is a single percentage based on total cost of living: I agree. But I don’t agree at all that your second point follows from your first? Imagine the original calculation was based on the cost people spent on bell bottom pants each year. And that happened to be accurate at the time (and therefore ended up with an original number similar to the food calculation). If we adjusted that number for inflation, would you say that the new number was still based on the cost of bell bottoms (even though the number would be equal to the one “based on food”). And if so, how can you say that the same number was “based on food” and “based on bell bottoms” at the same time?
Inflation is a single percentage based on total cost of living: I agree. But I don’t agree at all that your second point follows from your first? Imagine the original calculation was based on the cost people spent on bell bottom pants each year. And that happened to be accurate at the time (and therefore ended up with an original number similar to the food calculation). If we adjusted that number for inflation, would you say that the new number was still based on the cost of bell bottoms (even though the number would be equal to the one “based on food”). And if so, how can you say that the same number was “based on food” and “based on bell bottoms” at the same time?