There is a possibility that the Google Docs ID is reused?

Question

I have understood that this ID is unique on the link.

Google Docs API: Do document resource ID's ever change?

In addition I want to know is whether there is a possibility that the ID will be reused in the future.

(Example)

• FolderA (ID is A) a user is created has been removed.
• Other users to create FolderB. There is a possibility of FolderB ID is A?

Answer 1

No, IDs are unique and permanent, so they never get reused.