Recently I mentioned that a Star of David can be built inside the tetraktys by connecting the 6 points that surround the central point and by leaving the 3 outer points untouched. Here we have a totally different suggestion: to merge two tetraktyses (ten points arranged in four rows: 1 point in first, 2 in the second etc.) and build from these points two triangles: one that starts from the point at the top and ends in a base made from the four points at the bottom and the other starts from the point at the bottom and ends in a base made from the four points at the top.
These two interpretations strengthen the theory that the Pythagoreans who invented the tetraktys might have influenced this Jewish symbol.
