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Published on Jun 1, 2015
On April 10, 2015 in Far Lands or Bust we found the exact boundary between floating-point precision errors in our player position in the game world. I decided to press F3 away from the camera to confirm that, as was accurately calculated by fans, the boundary is exactly between blocks 2,097,151 and 2,097,152 on the Z axis of our long journey.
Why is this? As I very barely understand it, the game holds the player position in Binary with only so much space for each digit. A floating point boundary is the moment when that binary number has to move the decimal point over, such as going from 111111111111111111111. (21 digits before the decimal) to 1000000000000000000000. (22 digits before the decimal). The loss in accuracy is what causes the "jitteryness" in my movement and the block selection box offset.
I'm just now making this video public because we reached our $50,000 fundraiser goal for Child's Play Charity and held the FLoB-athon celebration on May 31, 2015. We officially pressed F3 during the livestream to find we were at 2,266,779!
ABOUT FAR LANDS OR BUST: For over 4-years I have been walking in Minecraft Beta 1.7.3 without any cheats or mods, to the Minecraft Far Lands as a walk-a-thon fundraiser for Child's Play Charity! FAQ's: http://farlandsorbust.com/about.html