Originally Posted by Deco354
What are internal/external ranges?
This is just a way of making poker range more visual.
The more polarized or "outer" two parts of your range is referred to as external range. Its somewhat of a complex concept as it does generalize too much in certain situations if we don't look at a hand as a whole.
That may not be the case here though depending on the blinds and the caller. We may make it to the turn with our entire (visual) external range given certain, (albeit somewhat rare) assumptions.
Even if not though, we still refer to the remaining external range hands as external range or "acctual external range" when we are talking about balance or turn action as its just assumed that, the hands that this line would be -ev going into the turn are no longer included when referring to turn external range.
Hopefully that helps.