I missed Fibonacci day the other week. I did not realise there was a day dedicated to Leonardo Pisano who first noted these beautiful numbers. Mind you it is becoming the case of which ntobale person/event does not have their dedicated day, rather undermining the original purpose I suspect.
I say these sequences are beautiful because they define numerically some our most wonderful shapes.
Added to this Pisano also popularised hindu-arabic numerals and the decimal number system. A busy man.
Apparently humans like fibonacci sequences or rather their geometric results.
Evidently flower petals are a good example of nature using this sequence of numbers where the next number in the sequence is the sum of the previous two numbers in the sequence.
so 5,8,13 leads to 21.
fascinating!
The Wargaming Erratic 