Uhhhh... You maybe not destroy the planet, instead of that maybe you can destroy existence with portals. With paradoxes.<br><br>Example: You will get something tall as to roof from the floor, then you will open a portal to the floor and roof and place it there. After that, pull it some, after you find the spot that is not connected, you will connect that unconnected part (like welding iron). You will get an infinite object. After that, begins the fun part. You will start moving the roof to downwards. What will happen? No one knows. Maybe this is a paradox or stuff? Maybe this is how you can make disaster and completly destroy reality and unniverse.