Can anyone acknowledge that it's friggin' amazing they've gotten this far with stereolithography? Yeah, it's an expensive machine which takes a long time to crank out one instance of an object, and requires some non-"printable" components (hey, they're not printing the engine yet!), but really: they've gone from "impossible" to "push button and wait, some assembly required", from making small chincy toys to major fractions of a car.

Printer costs too much? prices come down. Long production time? machines get faster. Materials not strong enough? they're getting stronger.

Sorry if the future will be here next Tuesday instead of today.