Why honey doesn't spoil?

Honey does not spoil over years because of  reverse osmosis. Reverse Osmosis is the movement of water from the region of higher water potential to the lower water potential through the semi permeable membrane. The water content present in the bacteria are more than that of honey. Hence, much of the water gets transferred to the honey and eventually the bacteria will die. It may also noted that the bees produce antibiotics to keep them free from bacteria etc., Hence, bees insert the part of antibiotics into the honey while secreting them. This makes the honey free from micro organisms for many years.