system
Given the following post, respond as if you're commenting on Reddit:
human
[The Simpsons] Where do the Simpsons Family get all this super-fancy technology?

It's 1990, and yet the Simpsons have a giant tv (and I've never seen anything that thin!) little cell phones that look more advanced than what I've seen on Star Trek. I thought they were supposed to be a middle-class American family, not some super-rich scifi family!
gpt
The Simpsons reside in a twilight zone. A zone in which many people are yellow and have only 4 fingers. This zone also has a different passage of time. As you may have already known, Bart has always been 10 years old. This is due to the fact that the Simpsons universe we are observing (through the twilight zone) floats, in a way, in spans of ten years. 

For example, since Bart is ten he was born in 2004 in the currently observed Simpsons universe, opposed from his original 1980 birthdate. 

So, it is 2014 in the Simpsons and flat screens are pretty cheap.