[nbardy]

You should take a look at Pia Maloney and Eric Weinstein work.

CPI is broken because it doesn't factor in a "change in taste or prefence"

CPI treats individuals as a giant unmovimg population mean.

To counter they change to use vector fields.

[xadhominemx]

Of course preference is included in CPI. Weightings are adjusted periodically as consumer spending patterns shift, and price elasticity is explicitly factored on a quarterly basis in chained cpi