well to refute the example of open water as luck having equal effect on both i propose the folllowing example. however bear in mind that for this example we consider luck to be "when preparation meets opportunity". therefore, what you attirbute to luck is only a matter of chance, which could be analyzed statistically to be that in a given area with a given population of fish under very specific circumstances (ie tide, time, lunar phase, currents, season, etc) there is a probability of xx.xx% of encountering a given species.
lets take, then this scenario:
Boat A: we have Miles, the Titan of Tuna
Boat B: we have Lesly, some chick i porked for a week back in Miami that hates the water
Already given the different skill levels, we can see that Miles is more likely to catch more and bigger fish.
Now Boats A and B are in Fishing the EXACT same school of TUNA of the coast of South Africa. so its an openwater trip.
-Miles deploys flashers, and chums the water properly, and does everything right to attract the fish to swim closer to the surface. and it works.
-Lesly is lazily floating on the surface and occasionally dive bombs down to 30m. to shoot the nearest fish that she seesm
at the end of 3 hours,
Miles: 4 large bluefin tuna, 6 yellowtail. total worth in kgs: approx 400kgs
Lesly: 1 small bluefin tuna, 0 yellowtail. total worth in kgs: appox 40kgs
we could also have the opposite result, where Miles gets 40kgs and Lesly, that bitch, gets 400kgs, but that would be only for this trip, there is no way she could consistenly be that "lucky" amongst other things