The kingdom of Qi is digital data in the hands of every human being - Mark 1:15 (NKJV)
Depending on the Bible version, the holy city is described as either four Square or Perfect Square.
Geometrically, a square is a plane shape with four equal sides. The length and the breadth are equal, unlike rectangle.
Clear and precise understanding the I Ching reveals that each symbol is a hexagram and the six broken and unbroken lines in a symbol are six sides of two equilateral triangles intersecting to form the hexagram.
Similarly, the four broken and unbroken lines in an ODU are four lines on the four sides of a square.
The term "four Square" in revelation 21 is 16.
Square = 4 sides
= 4 lines
= Odu
Each ODU is geometrically a square and the uncountable else is an infinite square grid. Ifa literary corpus is a square grid comprised of 256 squares.
Four Square = 4 x 4 sides
= 16 sides
= 4 x 4 lines
= 16 lines
Perfect square is 4 squared, which is equal to 16. Which explains why some versions of the Bible say four Square and others perfect square.
Four Square = perfect square = 16
Recall that 16 is Ifa.
Ifa = I + F + A
= 9 + 6 + 1
= 16
Ifa is a hex, which means hexadecimal or hexagram.
Ifa = hex
Hex = Hexagram
= Hexadecimal
So four Square or Perfect Square in revelation 21 is Hexadecimal: 0 1 2 3 4 5 6 7 8 9 A B C D E F.