[vectorjohn]

"I don't have the exact data..."

Well said. You don't. Buy if you can do ticket science on the back of the envelope, imagine what the ACTUAL rocket scientists can do. You think they went "hey, I just came up with this guesstimate that this is going to be impossible, but let's go ahead and blow the money anyway."

I can bullshit rocket science too: you overlook all kinds of stuff. Such as when coming back to Earth they don't need fuel to fight air resistance which will actually do most of the work for them. Bam! No need to double the fuel.

But what do I know. I'm not the one doing it and neither are you.

[deletes]

Well said.