The Golden Ratioi (Golden Section) is often referred to by the Greek letter 'phi'.
When it arises as the solution to a quadratic equation it has two values; roughly 1.618... and 0.618...
The total number of my posts is just 1 away from being 1000phi, whilst simultaneously, the number of my posts in this Forums Cafe is equally, just 1 away from 1000phi, using the second
If I were to have left this observation any longer, I would only have veered further away from this coincidence.
The Golden ratio turns up all over the place in nature, architecture and music.
There's a book by the noted music scholar Roy Howat, entitled Debussy in Proportion
"Through detailed analyses of the piano pieces Reflets dans l'eau
and L'isle joyeuse
and the symphonic poem La mer
, Dr Howat shows how the pieces are built precisiely and intricately around the two ratios of Golden Section and bisection so that the music is organised in various geometrical patterns which contribute substantially to its expansive and dramatic impact. The final chapter traces evidence of whether the proportional systems were designed consciously, and if so, where and why Debussy might have learnt such techniques."