John Williams from Shadowstats calculated CPLie as it was back in the 70's and 80's and it's significantly higher than present day indicators.
The government used substitutes to offset price increases ie. "Hedonic Adjustments", for example where they previously used beef as a measure, they swapped it for chicken.
Example 2, a brand new car is about $30k, but they say you get all these new features and technology that justifies the higher price, yet insurance, parts, labour repair quotes, registration have skyrocketed.
You could buy a brand new car for $12990 driveaway with a warranty in the 90's.
They also don't include rent, mortgage payments or fuel prices in the CPLie.
If they were serious about fighting inflation, they would be raising rates by 2.5% a month, not 0.25%. Everyone who understands basic math knows that they can't do this without blowing up the stock and mortgage market.
That's the crux of the problem, most people understand football and player statistics than they do addition, subtraction, multiplication and division.
Next time you go out in public, observe how many people need a machine or calculator to work how how much change to pay back.