A few years ago I watched the Structure and interpretation of computer programs video lectures, kindly posted publicly by MIT OpenCourseWare. There's so much interesting material in them but one part really struck me, in 5B: Computational Objects Gerald Jay Sussman defines a pair "in terms of nothing but air, hot...

In my continuing effort to make moving to Broken Hill quantifiable here are some extremely rough travelling numbers. From To Plane Train Bus Car Bicycle Walk Broken Hill Adelaide (500km) $200 2hrs No train $20 7hrs 5hrs 1w 1m Broken Hill Coffs Harbour (1,400km) $500 7hrs $60 23hrs $120 21hrs 15hrs 3w 3m Broken Hill...