I found this interesting What else can you do with a Big Dumb Booster? - Charlie's Diary He writes: "What are the other possible commercial applications of the ITS, besides sending a million optimists to Mars?" and then describes a number of intriguing possibilities. Note that in his numbered list, item "0" is described as "axiomatic", it is obvious and foundational, he only lists it so that all readers can understand the following items he describes. If you want to know who this guy is, see Fiction by Charles Stross: FAQ - Charlie's Diary Note: and after posting I realized I misspelled his last name in the thread title. It is "Stross", not "Strosse". Sorry.