Re: To the Moon for less than a billion
Hey, these are "SM" quality calculations.
A trivial comparison with Apollo figures shows gross understatement of mass and overstatement of capability at each stage of the process.
As a famous scientist once said, "This isn't even *wrong*!"
(for those who don't understand the context of the quote, it means that the numbers are plain stupid, and worked by someone who doesn't even understand the problem)
Put it another way.
You can go...