Full Idea
The rationals are everywhere - the irrationals are everywhere else.
Gist of Idea
The rationals are everywhere - the irrationals are everywhere else
Source
R Kaplan / E Kaplan (The Art of the Infinite [2003], 1 'Nameless')
Book Reference
Kaplan,R and Kaplan,E: 'The Art of the Infinite' [Penguin 2004], p.24
A Reaction
Nice. That is, the rationals may be dense (you can always find another one in any gap), but the irrationals are continuous (no gaps).