You know what I want also???
That we can treat any, and I mean ANY, block like we can a liquid!
Well, farming shows us that it IS possible to have TWO blocks be in the same space, a block is chiseled and then we add water/lava to the CHISELED OUT parts of the block and they then happily occupy the same block space.
What if we could do that with any block, not just a liquid??
My buildings could have have nice little corners of wood in an otherwise stone wall, or I can sometimes randomly with a precise square chisel remove 1/8th of a block on the outside of my wall and replace it with a slightly different colour to emulate wear, and, and, and, and
I soooo, soooooooo, would love this possibility!