Isn't there a risk that Nether gets extremely large after a while? Perhaps the sides should be trimmed from time to time so they regenerate and more glowstone is created?
EVE Online characters:
Daedalus II ex-CEO TOGOA, Daedalus III slave of Daedalus II
Little Molok Asura Engineer
"Each day I don't get an attempt on my life by a robot from the future I see as a personal failure"