The article is also very confusing. He alternates between considering the inflation rate and not considering the inflation rate. I still don't know if he is claiming that BLS is claiming that, for cars, the inflation rate is 0.

I also find his COTI quite misleading. It seems he is counting 100% of health care expenses (100% of premiums) but not counting the ~70-80% of premiums an employer pays in median weekly earnings. In the college field, he also uses a semester if college tuition for some reason. Since this is a 1 time cost, it should almost surely be accounted for differently.