The death of the rodent means that time has not resumed it's shape as it was before surely? What if he was a member of a group of tramps and his interaction was needed? Or that he was hit by a car or lorry and that altered the lives of the drivers that or he was about to die from kidney failure anyway due to his boozing and his way of life and this was a much more merciful death!
JB
There is a classic article in one of the Best of Trek Books discussing this. I believe the title was "the Amazing Disappearing Bum". The article listed four different alternate universes depending on whether Edith and the Bum lived or died. One universe for each of the four possible outcomes. One universe led to Star Trek, one to our timeline, and the other two to different timelines.
Yes:
Mason, Jeff "The disappearing bum: a fun look at time travels in Star Trek",in Walter Irwin and G.B.Love (eds) The Best of Trek 11 (New York: ROC 1992).
https://books.google.com/books?id=KB-QDwAAQBAJ&pg=PT303&lpg=PT303&dq=the+best+of+trek+the+amazing+disappearing+bum&source=bl&ots=75TVwHdTsC&sig=ACfU3U3ZzoaREhwx9DGbOmcO3AqZbVVqjg&hl=en&ppis=_c&sa=X&ved=2ahUKEwiR6u2QxuHoAhWlgnIEHePhDS4Q6AEwAHoECAwQKQ#v=onepage&q=the best of trek the amazing disappearing bum&f=false
Oops! It appears I wrote part of this inaccurately:
That reference is The Best of the Best of Trek II. The original was in The Best of Trek 16, 1991:
https://archive.org/details/bestofbestoftrek0000unse/page/n5/
Last edited: