Unlike computers our mind doesn`t run a complex pathfinding algorithm when it needs to find a path. When it needs to figure out if there is a path between two points separated by an obstacle (let`s say we need to figure out if a unit will be able to cross an the other side of a spawn of water) our mind will draw a straight line from the edge of the obstacle where the actor/unit is found to the opposing edge, on the other side of the obstacle in the direction where the destination is located. In the next step we will try to connect the two edges by following the outline of the obstacle.
That`s my entry for today.
I once saw such an algorithm at https://www.redblobgames.com/ unfortunately I cannot find it anymore.
The site is still an interesting resource about path-finding though.