Post ID increments going fast: is it normal?

Hi: I recently started using %post_id% for permalinks on my new site and noticed that the post_id increments are going very fast. For example, if I start a new post, the post id is 1345. Once I save it, add the post URL to another page and save the page, add a redirection through the redirection plugin, then start the next post, post_id is now 1349.

Is it normal that every change in WordPress (even if not a new post) results in a post_id increment? Am concerned about getting into huge numbers at some point.