I'd like to also point out that surely when you teleport, the air and such where you are teleporting has to go somewhere right? If the air just disappears, then you've basically made yourself into the most powerful antimatter bomb imaginable, or if the air has to move out of your way, then that air is going to move so quickly it would probably begin fusing with other atoms of air nearby. The only safe way would be if the air you're teleporting into, is teleported aswell to where you just came from which could still be disastrous if say for instance you teleported from from the UK to Australia, and in the area you teleported to, there was some deadly scorpion, congrats you've not just populated britain with an invasive species of scorpion