It proves nothing of the sort. The method they use to calculate the current rate is simple and immediate.

Furthermore, because these are the direct rates (e.g. for new bonds purchased from US government offerings), they're whatever the US government decides (in this case, CPI calculated).

What you're probably confusing is post-issue market bond rates, which would be indicative of the market's opinion of future inflation.

> We set the inflation rate every six months (on the first business day of May and on the first business day of November), based on changes in the non-seasonally adjusted Consumer Price Index for all Urban Consumers (CPI-U) for all items, including food and energy.

I’m not sure of that the rate is adjusted twice a year. Inflation was high in the previous 6 months so the rate is higher.

We will know in another 6 months.