Nerve damage (neuropathy) can be caused by many conditions, including: 1  Diabetes. High blood sugar levels, common in diabetes, can damage nerves throughout your body. 2  Shingles. Anyone who has had chickenpox is at risk of shingles, a rash of blisters that can be painful or itchy. 3  Chemotherapy.
This is right. The world's usable size is 60,000,000 x 60,000,000, and the nether is exactly the same size. But due to the 1:8 ratio between the two worlds, portals in the nether only work within a square of 7,500,000 x 7,500,000. HUGE. You don't even need to know how big is the nether to be able to build in it.
One way to think of this zone is as spheres around each portal, each of a true radius equal to its distance to the other. For example, if the Normal world portal was at (0,50,0) and the Nether portal at (0,100,0), then each portal is 50 meters away from the other. In this (simple) case, if a Nether portal was built closer than 50 meters to (0,50,0), then the Normal World portal will now link to it.