system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What's happening between EU and Switzerland?

I've read something about immigration on Switzerland and punishment from the UE but I'd love a simpler and less subjective explanation.
gpt
In order to enjoy free trade between Switzerland and the EU they have to abide by a number of rules that apply to EU countries as well. One of which is free movement of people. Since they are putting a stop to immigration, also from people who live within the EU, they risk blowing up the free trade agreement since they don´t play by the same set of rules as EU countries do anymore.