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@fribbledom

I would assume it gets more accurate the further into the sequence you go?

The sequence of fibonacci _ratios_ can be split into two: One sequence with all elements with an odd index and the other only with even. Based on the numbers above:

2.0, 1.666..., 1.625, 1.619..., ...

and

1.5, 1.6, 1.615..., ...

This is just a guess, but maybe both sequences approach the golden ratio monotonically. (A proof for or against is possible.)

@Scrith Then indeed the first sequence above would only get closer 1.6, i.e. the observation by @fribbledom would only increase in accuracy.

@floppy

Hmm...interesting. Man, mathematics has so many fascinating facets

@fribbledom

@Scrith It doesn't, because in the limit the ratio of terms in the sequence approaches the Golden Ratio, which is 1.6180339..., while the miles/kilometres conversion is 1.609.

But it's pretty close ... certainly close enough for most purposes.

@ColinTheMathmo

Holy shit, that is cool. This is like mortys mindblowers!

@fribbledom

Floppy@floppy@fosstodon.org@Scrith @fribbledom

Actually it does not. Have a look at the sequence of ratios:

2/1 = 2.0

3/2 = 1.5

5/3 = 1.666...

8/5 = 1.6

13/8 = 1.625

21/13 = 1.615...

34/21 = 1.619...

You'll see that the sequence of ratios approximates the golden ratio (1.618...). But it does so non-monotonically, in a chaotic or oscillating fashion, sometimes closer to the conversion factor 1.6, sometimes further away from it.