Our Project Manager has a set of Planning Poker cards he uses for work estimation. These are numbered in the Fibanacci series, 0, 1, 2, 3, 5, 8, 13, …
Sometimes we don’t agree, someone says it is a 13 and someone else says 8. He insists we agree on 8 or 13 when it would be a lot quicker to agree 10 or 11.
The whole Fibanacci thing has got blown out of proportion. It is used to a) spread out the answers, b) allow a pack to have small numbers like 1 and 2 but also 60 or 80, c) a bit of fun
There is nothing magical here.
After 2 rounds of voting I normally average anyway.