Why did the olmec layout their cities in alignment with the paths of stars?

The Olmecs used the stars as a natural navigation system, they were orienting in space according to their alignment. So when they were building their cities, they were aligning them according to the positions/paths of the stars, so it was very easy for them to now the traces between the cities, as well as their positions, from wherever you were in the empire.

1. seasonal

2. frictional unenployment

3. the number of the labor force multiplied by 100 and then subtract the number of unemployed.

4. 4%

5. an increase in prices

i heard they are taking it off i hope this isn't true but otherwise if it doesn't get taken off it will probably be in early december or early january of 2018-2019