I've woken up in 1973. Until I can figure out how to monetize my knowledge of coming political, economic, and social trends, I need to support myself somehow.
So... I walk into one of the major computing companies (IBM, Digital Equipment, Bell Labs, Atari, Texas Instruments, Motorola, Hewlett-Packard, EDS, etc.) and ask for a job. The receptionist directs me to a waiting room. "Someone will be with you shortly."(*)
Sitting among avocado-green and rust-orange chairs, ashtrays and Life magazines on the coffee table, I'm feeling a little anxious. I have no credentials to show. Well, I do have credentials, but they are in the future and the dates might raise some suspicions. I will have to impress them purely with my knowledge and skill.
I carry in my head a broad palette of contemporary computing knowledge: Python, C/C++, SQL, SQL Server, DOS commandline, a full repertoire of algorithms (searching, sorting, binary trees, image processing, geometry, numerical methods, etc.) and lots of mathematical and statistical methods.
However, most of these technologies have not been invented yet, or they are still in their infancy and are not yet widespread. And I don't know the first thing about whatever they might be using (Fortran, COBOL, IBM mainframe operating systems, punch cards).
Will I be able to impress the hiring manager? How? What should I emphasize?
(*) Aside to youngsters: There was a time when there were far fewer gatekeepers in the hiring process. If you walked into a corporate headquarters from off the street and asked for a job, you could reasonably expect to be taken seriously, or at least treated politely. Especially if you were dressed up and had a briefcase.