First of all, Hello. I'm pretty darn new here and figured I might as well start throwing toys into the pool.
Alright, the concept I'm working on is an iterative town. In short, it's a town that repeats itself every so many years/generations. Before I start writing it in earnest, I'd prefer to understand fully how it works. Unfortunately, it can get rather involved, so I've come to you, the people. for advice, ideas, and general assistance.
I suppose I'll start with what I have. This SCP is a town that repeats itself after a certain time. The current time frame is every 3 generations, but I'll touch on that later. The anomaly is both memetic and supernatural. The focus of the effect is the town itself. People who live there are fully integrated into each iteration. Additionally, the more invested people are with the town, whether near or far, the more they are affected by it. I'm terrible at explaining things, so allow me to give an example.
Person A lives in the town. They live the exact same life their great grandfather did and name their child after their grandfather, and so the iteration continues.
Person B stays a day in the town each year on the way to a camping trip. Outside of this stay, they live their own life. Unbeknownst to him, his great grandfather stopped in the town each year as well. The reasons could have been very different, but he is similarly affected, with his yearly stay being part of the iteration.
Now for what I need help with. One small confusion I'm having is when the cutoff will be for when each iteration starts. The current concept is every 3 generations, but that seems a little long and not really creepy at all. Every year would definitely be more creepy, but it wouldn't allow for much natural progression in terms of the in habitants. I need a sort of inbetween. Short enough to be noticable and frightening, but long enough to be feasible without too much suspension of disbelief.
The big problem I'm having is how technology would affect the iterations. I want it to be flexible enough to integrate all new technology, but rigid enough that it's clear something not normal is happening. This is related to the previous issue, since if there's too much time between iterations technological advances alone would practically break the cycle.
Anyways, that's my idea and those are my issues. If you don't know what the heck I'm saying, don't worry. That's a normal reaction when I open my mouth. But if you are able to navigate my mental clutter, any advice would be appreciated. Thanks :)