system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: is it possible to not have citizenship of any country?

For example i get expatriated from the US and i don't get a citizenship to for a example Sweden.
gpt
Short answer: yes, it's possible. The repercussions are that any nation can declare you persona-non-grata which means you can be arrested simply for being present in their territory.

Additionally, you would be legally considered an alien anywhere you were, and have to deal with the local issues.