It could be an Ent situation, they live too long to interact with something that only lives 100 years.
Star Trek TNG "Time's Array Part 1/2" had the alternative overlaid dimension variation.
TNG "Timescape" had the alternate timeframe / timespeed with the Warbird / Enterprise existing in a different time than the runabout, as well as fruit that rapid aged / decomposed relative to the crew members (and the fun issue of accidentally walking into a bubble of AGE+50yrs).