Well maybe I am talking about something else entirely. Perhaps my big mistake has been using the term “skill” rather than “skillful play” or even simply “strategy”
Basically I am saying that the question of “How big a factor is luck” cannot be answered that simply. The degree of importance of luck is relative depending on other factors, the only other one I can actually think of being “skillful play” - maybe that’s better than an abstract attribute of general “skill”.
Luck is a significant, probably game-deciding factor when two players play equally skillfully. When one player plays like a total moron and the other plays like the Kasparov of A&A, then luck will not be a significant factor in the outcome of the game, unless of course the difference in luck between the two players is as vast as the difference in skillful play.
However, luck tends to average out over the game, and skillful play will compensate for and minimize the effect of luck. There is an infinite range of degrees of skill, but you can only be so lucky or unlucky. So on the whole, I would say that skillful play is by far the more important factor. But when there is no meaningful difference in skillfulness, then luck becomes a factor.
Maybe think of this analogy: compare the significance of the presidential vote in Florida, and in the rest of the country. Generally,
the vote in the rest of the country is much more important than the vote in florida. But you need both factors to determine who won the election. If the rest of the country has resulted in a tie, then suddenly the Florida result becomes much more important.
That’s the concept I have failed miserably to communicate: that the importance of one factor will vary depending on the closeness of other factors. When other factors cancel each other out, the factors that are not equalled out will determine the outcome.
Finally, I’ll just say this: in any event, percentage is the wrong unit with which to measure the significance of a factor. Instead, I think you have to use descriptions like “success will vary directly in proportion to the degree of luck, and in a squared proportion to the degree of skillfulness of play.”