> Imagine having a secretary who could read 1 million records and give you back your answer in 100 microseconds, for just 10 cents an hour. That's Postgres.

Well, that secretary can only answer very specific questions in a rather peculiar format.

> [...] but we'd all lose our jobs, as secretaries did to postgres.

I doubt many secretaries were replaced by postgres.

However, you might like reading about https://en.wikipedia.org/wiki/Unit_record_equipment