That eye there: that’s the eye of confusion. Whatever that thing is, it looks like it doesn’t know where or when it’s been.
What is wrong with this place? These portals can displace you in space OR time if you get sucked into one. And they’re just floating across the Mirrodin’s surface. Imagine you’re at the swimming pool, and you jump off the diving board, and one of these portals drifts between you and the water. And instead of splashing into the pool, you land on a mountain on the opposite side of the planet, 1,000 years in the past! What if one of these things sucked up your house with you in it?
Seriously, how do you maintain a civilization with this kind of nonsense going on? And why would you want to?
10,000 Reasons Why the MTG Multiverse is a Terrible Place to Live 