Discussion Series / Counterpart2018

"What Could Have Been":

• What Could Have Been: The series. Two worlds, each with the exact same history up until 30 years before the series starts. Generally, most characters have a ‘counterpart’ who is similar.
  • Howard’s sub plot is that his counterpart is the polar opposite of him, and achieved some of the things Prime Howard wants. The trade off is Alpha Howard is significantly less relatable and aggressive.
  • One Baldwin is an assassin, the other is a musician. The assassin sees her counterpart and experiences regret. The musician sees her counterpart and experiences fear of what she could have been.

The problem with this is that the trope itself is for out-of-verse possibilities for TV shows, games, etc.

What trope is the best in-verse equivalent? I've meantime commented it out in the tropes page.

EDIT as of 3 Jan 2020: It has since been pointed out to me that "What If?" is a valid in-verse version of this.

Terminology consistency

Can we agree on what terms to use? The series seems to indicate (mostly in subtitles) that "Prime" is the preferred term for entities from the alternate Earth, but I'm less sure what we should call the non-prime Earth and its denizens.

Any suggestions?

EDIT as of March 5 2018: The subtitles reveal that the non-prime Earth is usually tagged as "Alpha" when necessary.