That's a very fascinating link. Are the claims made here true, that these charts are true to the 1980 definition of inflation? Are there any other factors that

That's a very fascinating link. Are the claims made here true, that these charts are true to the 1980 definition of inflation? Are there any other factors that could make what is in these charts incorrect or misrepresented? I'm not from the US and don't have a first-hand impression of US price development. It seems unlikely to me that the US has really had >7% yearly inflation for well over a decade. So what gives? The most compelling counterargument is simply that the charts in your link don't reflect reality.