[TeMPOraL]

Exactly. It's a pretty obvious concept, and I don't understand why I have to explain it to so many people in real life.

Particular context, in which I have to explain this often: when needing advice about which computer/phone/appliance to buy, never ever ask the salesman in the very store you'll be buying in. It's literally their job to give you bad advice - to suggest a deal good for the store, not for you.