Minecraft wiki entry for Historical_effects, associated text: Beyond every power of two, redstone dust will stretch more and more, and vertically travelling redstone will become more and more disjoint from its intended position in versions where such effects exist, both effects obviously doubling for each integer exponent of 2 surpassed. These effects can only be seen in modded versions, or (in Beta 1.7.3 and prior) via editing coordinates externally and exploiting the spawn chunk glitch (see Java Edition hard limits#Spawn chunk glitch (X/Z: ±524,288–X/Z: ±1,073,741,824)).