I read through most of the articles, and this jumped out at me as a DIRECT result of the Principle of Discarded Timelines. To re-state it:
Whenever a timeline is altered by a time traveler, a new timeline is created as a result of these changes. The original timeline from that point onward is sent into the Darkness Beyond Time, a realm of frozen non-existense containing all discarded timelines.
So if this is true, the instant Kid saved Serge, then "another world" should have stopped existing, and only Home World should have continued, exactly as occured in any other instance of changing, like how when Lucca saved her mother's use of her legs.
I'm saying Another World is NOT necessary for Kid to have saved Serge, as it
obviously is not according to How Changing the Past Affects Those Time Travelers whose Past Now No Longer Exists. The example of the "Jerky" from the article is apt, as it is the same type of thing. Kid only needed to go back once to save him. Another World no longer really needs to exist.
Just wondering if there was a good explanation here why Another World wasn't sent to DBT the instant Serge was saved.