@thomaschristopherking yes! you can edit long after posting! It's so good for those of us prone to typos
In case it's useful, some additional info about the edits (please skip if you don't want to read about it now!):
- There will be a record of your edits (i.e. don't use "edit" to delete information you want to actually be gone)
- If you edit a post, Mastodon sends a notification to people that have "boosted" it. It's a safety feature in case, let's say, a bad actor changed the content of a post to something offensive. Most times, though, people uses it to correct information they found after posting.