You ve heard it a million times, ever since you started skiing.
Skiing is different than, say, tennis.
Think about it. If your feet and skis are relatively close together, beneath you, you can shift from foot to foot with minimum motion and minimum disturbance of your center of gravity. Of course, I m not talking about jamming one s feet and skis together. Such a stance is old-fashioned, artificial and pointless. We have two legs, independent suspension, as it were, and we should use both legs independently.