hard · Poker Theory Postflop

Board: A♠ K♦ 4♣. Why does the BTN (aggressor) have an overwhelming 'Range Advantage' here?

1. The Big Blind only defends 10% of hands pre-flop.
2. The BTN has more 44 and A4s than the Big Blind.
3. The BTN is in position, which automatically grants range advantage. (under this line) (under this line)
4. The BTN's range contains AA, KK, AK, AQ, and AJ, while the BB's range is capped by calling pre-flop.

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