#1, who cares if its relatively low cost for a space station. it just matters whether its costly or not, which it is. 2 billion is ~20% of nasa's budget. > "

#1, who cares if its relatively low cost for a space station. it just matters whether its costly or not, which it is. 2 billion is ~20% of nasa's budget. > "It's budget has been less than $2B/year consistently for almost 2 decades." first off, that is just factually wrong. Nasa estimates in 2018, even 3-4 bil is overly optimistic. but even if that were true, 2 billion 20 years ago is north of 3 billion in today's money.