While high-yield savings accounts might beat the reported average inflation rate, they don't offer principal growth, and the actual inflation for essential items like groceries, housing, and car insurance can be higher than the interest earned, meaning money isn't truly making money.
"Well, John, what if I put my money into a high yield savings account? Well, now I'm beating this inflation rate. Sure, you're beating the reported inflation rate, but you're not seeing any growth in principle. Not to mention that the prices of many things are actually growing faster than the average inflation rate. Because remember, the average inflation rate of 2.4% is the average of many things. And you have certain items, for example, many grocery items, for example, your housing costs, for example, your car insurance costs, which are growing significantly faster than the average. So yes, the average inflation rate might be reported at 2.4%. But the inflation rate for the things that you need could potentially be more than the high yield savings account, which means yeah, your money is growing faster in a high yield savings account, but it's not actually making you money."