Mergers are one of the most common problems in EyeWire. Mergers are created when either the Artificial Intelligence (AI) has included pieces from two different cells in a single segment, or when players mistakenly add a segment that does not belong. When the AI includes pieces from two different cells in a single segment, there is no way for the player to separate it into two segments, so they must learn to work around them. For smaller mergers that do not exit the cube a player may ignore them and continue their trace as normal. For larger mergers and/or mergers the exit the cube, the player may leave out the segment with the merger and continue their trace as normal.