I believe you answered your own question. Computers have limitations that make it impossible to have infinite things so the answer would be never, at least in any probable sense.
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It doesn't even matter anyway; to walk 30 million blocks it would take 80 days of non-stop walking - that's real-life days, not in-game days; even flying in Creative would still take 32 days. I seriously doubt that anybody has ever legitly gotten to the edge of the world in Survival*. Heck, Kurt still has a LONG way to go after spending years walking to the Far Lands (as they were before Beta 1.8, "only" 12.5 million blocks away). True, he only plays half an hour every few days but that is still years of playing several hours a day, not to mention you have to consider hunger, terrain, mobs, etc.
*And no, stunts like don't count (note the length of the video (upper-right), using the super-fast faster-than-Creative-flying minecarts in an earlier snapshot).
Also, the current limit is only artificial and hard-coded into the game; the use of 32 bit integers for many variables, including block positions, places a limit of +/- 2.147 billion, as explained here (if they made all integers 64 bit they would become limited by double-precision accuracy, to about 15-16 decimal places, eventually causing terrain generation to mess up like it did in old versions, long before the 64 bit limit (+/- 9x10^18) was reached). Still, there is no reason at all to extend it, even to, say, 60 million blocks.
nothing is infinite. Computers are just limited by their creators. Nothing on earth is unlimited. So you answered your own question. But truly infinite worlds is a great idea!
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slash through the madness that shaped our destiny...
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*And no, stunts like don't count (note the length of the video (upper-right), using the super-fast faster-than-Creative-flying minecarts in an earlier snapshot).
Also, the current limit is only artificial and hard-coded into the game; the use of 32 bit integers for many variables, including block positions, places a limit of +/- 2.147 billion, as explained here (if they made all integers 64 bit they would become limited by double-precision accuracy, to about 15-16 decimal places, eventually causing terrain generation to mess up like it did in old versions, long before the 64 bit limit (+/- 9x10^18) was reached). Still, there is no reason at all to extend it, even to, say, 60 million blocks.
TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download.
TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1.6.4.
Why do I still play in 1.6.4?
Im The Golden Pumpkin!
Give me a thanks or like If you want to.
And just the surface at that, I presume.
Just testing.
slash through the madness that shaped our destiny...