Today begins our fourth topic challenge!
Dates: 23 March - 5 April
When I joined Worldbuilding, I told myself that I would only answer science-based questions. I'd stay away from magic-based or fantasy-based questions. I've done a decent job of it, but I've seen lots of brilliant questions asked about magic. It seems to bring out a lot of creativity in people.
Remember to use this tag if you're asking a question as part of the challenge.
In two weeks, we'll announce the stats for users who asked and answered questions using the tag. If you have questions, see the original post or ask in chat. Let the games begin.