1. It's spelled Gravity, not "gravaty" /grammarnational socialist
2. We already have gravity, unless you mean you fakeKill a brick under another brick, and that one doesn't fall, in that case, make it so that brick gets fakeKilled too and there you go
3. Your poll allows us to choose both options, which is a failure of a poll
4. "make so bricks will fall down more cool"? Would you like them to be wearing sunglasses while they fall? They make everything cool!
Just a few pointers, hoped this has helped you in anyway