I'm now thinking of developing a Dust Speck Machine Gun. Or Shotgun, possibly.
Well, yes, but it's one dust speck per person...
Well, I don't see how anything that never registers on any level can have any utility.
But... I dunno. Something that lowers your IQ by 1 point may be something you will never discover, and yet it will cause you negative utility...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.