The Void is the term given to the empty space beyond the bedrock layer in the Overworld, Nether and End(For the End, below the island). The Void appears at the bottom of maps, where layers of bedrock restrict access to it. The Void is technically endless, however if you fall more than 32 million blocks down, Minecraft will crash. Falling into the Void and the /kill command are the only possible ways to die in Creative mode.[1]
Blocks cannot be built on the underside of the Bedrock layer, but if Gravel or Sand are placed in the bottom hole nearest the void, they will fall infinitely. Pistons...
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