system
Given the following post, respond as if you're commenting on Reddit:
human
[Black Mirror] What eras are accessible in San Junipero?

Forgive me if it's mentioned in the episode (if it was, I must have missed it), but is there any limit to how far back *or even forward* you can go? 

It's my understanding that the bulk of San Junipero residents/visitors are elderly people (or those who died of old age) and thus would likely want to relive the eras they were alive for.  But say I wanted to go back to the 1920s, could I? Or could I experience (a predicted version of) San Junipero in 2050? And thinking about it, what happens if I try to drive out of San Junipero and travel the world? Is the rest of the world generated with San Junipero just being the hub of activity? Are there invisible walls like in most open world games? Or is the surrounding landscape procedurally generated like in Minecraft? 

What are the limits, and what else could I do besides what we explicitly saw in the episode?
gpt
There isn't much of a Watsonian answer that would be anything more than pure speculation. One of the things that makes Black Mirror so excellent is what isn't made explicit. It allows your imagination to fire off and fill the gaps it leaves behind for you. Doyalist rant over.

San Junipero isn't about historical accuracy. It has eras designed with nostalgia, with a particular focus on the good times. So you'll likely find the truly iconic periods.