The only way for errors to occur in a program is by being put there by the author. No other mechanisms are known. Programs can't acquire bugs by sitting around with other buggy programs. Right practice aims at preventing insertion of errors and, failing that, removing them before testing or any other running of the program.

I live in jeans and own a lot of them. I'm much more comfortable in trousers and T-shirts, and I don't often wear dresses.

I cry in movies a lot, and over books.

I have a lot of mirrors around my house, not because I like to look at myself, but because I like the light and perspective they bring to a room.

My best feature is my hair.

Do I think I'm under-educated? Academically, absolutely. I never took any exams, no O- or A-levels.

Once cancer happens it changes the way you live for the rest of your life.