The whole thing is not about about ROI at all... my understanding is that the thinking is that "it would be cool if there were some realistic swordplay SDK/API/thing out there" . Neal Stephenson has the pull and is therefore putting his face to it (random geek has kickstarter project is not a
CF: "Hello everybody out there using minix -I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu)
IFTFY: "Hello everybody out there into swordfights -I'm doing a (free) platform for swordfight games (just a hobby, won't have any backstory yet, just I think it would be cool)"
If you teach your children to like computers and to know how to gamble then they'll always be interested in something and won't come to no real harm.