White light darts and zig zags across sky at seaWhile standing on the 10th level of the cruise ship MS Veendam south of Puerto Montt, Chile, and facing west at approximately 9:00 PM local time, I noticed two lights near the horizon. I assumed that these were distant ships but it was too dark to see any ship outlines. I then saw another light zig zag from one of the original lights to the other very quickly and erratically. It then blinked out.