Question

if humans were to settle on other planets which of the fundamental quantities will be in trouble and why?

Answer 1

brightness of one lit candle. However, units don’t quite capture the concept of ‘brightness’ or ‘timeness’, that’s why physicists think about these quantities as abstract things called ‘dimensions’. For example the ‘second’ is a unit of the dimension time. There is even a technique in Physics and Engineering called ‘Dimensional Analysis’ which uses this concept to guess relationships between variables which