How big would a block be?
It is common knowledge that a block in Minecraft is exactly 1 meter, on all sides. But since the USA mostly uses the imperial system, what imperial length would an American creator choose for each block?
Here are some of the choices:
1 yard (3 feet) - The closest imperial unit to a meter, but slightly smaller (still allows player to fit in 2 block height).
4 feet - An even number that allows for more headroom, as well as authentic ceiling tile and fluorescent light combinations.
64 (inches) - The default block size in all Half-life (and spinoff) games since the original - Considered to be 4 feet long in Half-Life.
2.5 feet (30 inches) - What I assume to be the size of tile in The Sims game. Also the width of most real world appliances.
2 feet - A more precise even number than 4 feet - Requires more blocks.
1 foot - The smallest fundamental imperial unit possible for a block - Very precise, and lots are needed.
Voxels instead of blocks?
Maybe instead of rigid blocks each object can be made of individual, collapsible, volumetric pixels.
The size of each voxel could be anywhere from 6 inches, to the smallest possible unit of 1 inch.