Do you understand basic Physics????
[blockquote]Sea Launch is saving somewhere between 10-20% in the delta-v cost to GEO by launching at the equator.[/blockquote]
This is equatorial launch vs ~ +35 +degrees (getting CLOSER to the Equator makes launch easier)
[blockguote] So obviously, if the Antarctic launch infrastrcture were to cost around 2 billion and it was LOWER the delta-v cost to all orbit by around 20%,[/blockquote]
Excuse me, but do you understand about the Equator, rotation of the Earth, and orbital velocity as a radial vector? If not, please find a large bucket of water and practice gargling today...