The kingdom of Qi is digital data in the hands of every human being - Mark 1:15 (NKJV)
What is the significance of 21 and 16 in relation to the geometry of binary digits in geomantic computing? It is not by chance that in Revelation chapter 21 verse 16 the hexadecimal is encoded in two dimensional and three dimensional geometric shapes.
21 and 16 are core numerical values summarising the structure described in Revelation 21:16.
16 is of course hexadecimal.
16 = Hexadecimal
= Hex
While 21 is Hexagram.
21 = Hexagram
= Hex
Consequently, Revelation 21:16 is Revelation Hex.
Revelation 21:16 = Revelation hexagram:hexadecimal
So the city being described in Revelation 21 is a hexagram or hexadecimal.
A hexagram is a six-pointed star whose six wings are A, B, C, D, E, and F. Since the six points are the first six letters of the English alphabet, the points can also be numbered from 1 to 6.
When added, the sum of the six points is 21.
A+B+C+D+E+F = 1+2+3+4+5+6 = 21 (Ikin)
Recall that 21 is Ikin, 16 (perfect square or four Square) is Ifa, and a Square is an ODU.
Also, the six wings are the six square faces of a cube, that is why the city is also described as a cube.