Gauge symmetry, 5

Symmetry dictates interactions.

Yang once summarized the fundamental laws in physics deduced in this century by a simple slogan “symmetry dictates interactions”.

— Symmetry & Modern Physics: Yang Retirement Symposium

— Alfred S. Goldhaber

2013.04.02 Tuesday ACHK

Constraints, 2

Give me a million dollars and I’ll figure out what to do. But it’s harder than it looks. Constraints give your life shape. Remove them and most people have no idea what to do: look at what happens to those who win lotteries or inherit money.

— How to do what you love

— Paul Graham

Constraints decrease the number of choices, thus decrease uncertainty. Therefore, constraints give shape to your life.

— Me@2010.12.27

2013.04.02 Tuesday (c) All rights reserved by ACHK