Correction: charging two people...

— in the same store, in the same plaza, on the same day, at the slightly different times (or not!), discriminating between them algorithmically —

different prices for the same item...

• So much for early 2000s "price matching."

• So much for benefits to loyal customers.

• So much for knowing your grocery budget.

• So much for the "neighbourhood store."

• So much for people being anything other than another resource to mine.

Everyone, everywhere is just a "rational consumer" guided by the "invisible hand" and "voting with their dollars" so that "the best products" emerge.

All of these axioms have, in the fullness of time, proven false.