DISCLAIMER: This is just the inkling of an idea for a world, don't expect much to be here yet.
I think this world will be roughly equivalent to our own in terms of modern technology, however it will definitely not be our Earth.
I think it would be really fun to explore ideas which aren't entirely unrealistic, and maybe could happen in real life, but without any of the constraints of how the real world actually is.
I'm not sure how involved, if involved at all magic will be. I'm tempted to lean a little be more sci-fi here, but I may end of going slightly sci-fantasy.