I think you're being disingenuous in not recognizing the spectrum of usages among different people, and even for a single person.

I think your definition is wrong. Post-pc is when most people do most of their computing on a tablet or phone. That time is near.

I still need a horse to check the fences without spooking the cattle or to control crowds in NYC. These automobile things will never catch on.

Not sure if you didn't read the comment fully, didn't understand its content, or are just trolling. Bravo!