WhoIsBramStoker?

Ulam Spiral

The Ulam Spiral is a method of visualizing the prime numbers discovered by chance by the mathematician Stanislaw Ulam in 1963.

The spiral is constructed on a regular rectangular grid of numbers, starting with 1 at the center, and spiraling out. As shown above, prime numbers are very often aligned on diagonals, which is unexpected and unexplained but leads to the development of new methods for generating or testing prime numbers. Visualization was required to discover this phenomena that scales to very large sizes.

IMHO,  how bitcoin and blockchains work is is a fundamental literacy point for our times. Deep down, mathematically and conceptually we are exploiting the DNA of creation as we turn the mysteries of “number” into working algorithms..

Excellent series of videos from the Khan Academy here and from imponderablethings.com here

Its more like fuel than money and it will disrupt all economic and social exchange. An excellent vision of the potential of blockchains (another interesting side effect of prime numbers).

Linky