Each number is the sum of the two preceding ones, starting from 0 and 1.

Is ubiquitous: the tree branches, cauliflower and the curves of the human brain, etc. It’s a phenomena surrounding us everywhere.

Weber’s law

The difference we can identify between objects is given by a percentage.

For example, if 60% difference can be distinguished in an effort between two estimates, we can distinguish that same percentage difference between other estimates and that is corresponding with the Fibonacci Sequence.

Fibonacci values work well because they increase by about the same portion each time.

Golden ratio

Golden mean or golden section.

Two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities.

Any two successive Fibonacci Numbers, have ratio very close to the Golden Ratio “φ” which is approximately 1,618034…