Probably the biggest issues of luck are (a) you have to stay alive and (b) you have to be at most 1 of 3 winners. Dyson for example was #4 so no joy. It has to

Probably the biggest issues of luck are (a) you have to stay alive and (b) you have to be at most 1 of 3 winners. Dyson for example was #4 so no joy. It has to be “significant” and the timing of other awards can tangle up with (a) above. Four people have won chemistry and physics twice which is great luck for them but blocks others. And in chemistry they have disliked theory and sometimes used it for medical awards.