"...What luck is vs. what your skill is.
Anyone can win
Anyone can lose,..."
I agree. I also think the first one(luck vs skill) is often difficult to discern (For beginners as well as veterans).
Mainly because its difficult to determine if we just stumbled onto a streaky shoe and went with the flow--or-- did we use skill to make our various-pattern selections/ that happened to also be in sync with the outcomes--or-- a person always wagered for one pattern and Variance raised up and smiled & granted favor for that one pattern in a 74-hand stint...etc.
The above scenarios are often confusing and misinterpreted. IMO that misguided confusion is what often makes it difficult to see in the Luck vs. Skill dilemma because Luck and Skill are often blended and not clear.
*I recall very early on in my bac play I was wagering for P streaks and stumbled onto a P-Dom shoe that produced 9,8,6,6,5 Pstreaks. Im not sure why i was only betting for P streaks(prob read it in a book, saw a big bettor win big with P streaks,....etc or similar nonsensical thinking).
If I remember correctly I was doing a 1,2,4,8,8, then continuing with a cumulative 20% add on each compound to the end. I won almost 300% of buyin and felt really smart. I had noted two other neg-pro players bust in the shoe(so Im sure their perception of P streaks,variance, luck, skill,..etc was different than mine)
Guess what I wagered for in my next shoe, next shoe, next shoe: P streaks. I didn't feel so intelligent after a few more similar-wagered shoes.
In hindsight Im quite sure it didn't have anything to do with my superlative Bac skillset. Was it luck or skill?
Probably just luck, or we could say it was simply Variance and I was fortunate to be in sync.