> So no, the point of the CPI isn't to track the price of a specific item. Strawman. No one ever claimed that. I'm not sure why you're continuing to argue her

> So no, the point of the CPI isn't to track the price of a specific item. Strawman. No one ever claimed that. I'm not sure why you're continuing to argue here. > but that doesn't matter because it is not possible to track what you might have bought I can think of several ways of improving on the current system, two of which can be easily derived if you understand my previous post. Spoiler: track the inflation of goods weighted by quantities purchased 1-2 years prior. And incorporate savings as a significant category such that the category CPI_savings = -(net_savings_this_month - net_savings_X_months_ago) / ((income_this_month + income_X_months_ago)/2). Still imperfect if most of the people answering the survey have no savings, but at least it would have captured the undocumented inflation from the 1980s-2010s that was hidden by decreasing savings.