A human scream, metal personal effects and ancient resonators.7LT4TöSYöTü0G7ö

If what Hank Johnson theorizes is true, then ancient civilizations were influenced by XM just as we suspect that the world today is. What's more, they understood how to interact with portals and use them to their advantage.

The remarkable thing about human intuitiveness and ingenuity is that despite the crudeness of technology or the lack of powerful resources, our ability to uncover fundamental truths about the universe is something that's always been with us.