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Originally Posted by Munchausen
 A daunting task. Let's see ... you'd need to change the number of latitude lines from 180 to ... what? 100? |
It'd be radians, the only unit of angular measure where the slope of angle vs. sine (angle) approaches unity around inflection points. Yeah it'd change the coordinate system and time. I'm not saying it's worth it but that's what you'd do.
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Try writing music by note durations or pitches of a "decimal" type system
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Music is already written in base-10 dummy. It's all base-10 fractions. Thirds, fourths, halves... this is fractions which are not to be confused with what separates Imperial from Metric. The characteristic distinction of Metric from Imperial is that Imperial has not 10^X conversion factors between units of the same measure or their derived units are not based on simple combinations of base units.
A L is 10x10x10cm. A gallon is ?x?x? inches? Yeah not a pretty number.
In building we rarely use mixed feet-inches when we can get away with it. A stud is 92 and a quarter inches. No builders would call a wall stud 7' 8 1/4." Until around 100" we mostly work in inches unless it happens to be a whole number of feet like 5x10' or something. The mixing of different units for the same measure is unsavory even for an industry most accustomed to it.
The Imperial system suffers due to its age, having come about piecemeal over a long period of time. The streets around the center of Paris are wholly unsuited for modern use but will remain because they were laid long ago without suitable design before modern methods, abilities, and uses came into being.
Kelvin starts at 0, Fahrenheit starts at -459.67.