How much would one go through just to discover Harmony? Or better yet, to salvage it for the world. Not the Equestrian world, but the human one.

"The bigger picture is greater than you could possibly imagine; mysteries rediscovered, facts proven wrong, and myths becoming realities! Can't you see? Earth is a door with many locks, but Equestria has all the keys. And it's our job

What can human and ponykind achieve side by side?