Loop quantum gravity. Loop quantum gravity (LQG) is a theory that attempts to describe the quantum properties of the universe and gravity. It is also a theory of quantum spacetime because, according to general relativity, gravity is a manifestation of the geometry of spacetime. LQG is an attempt to merge quantum mechanics and general relativity.
Eco Block, ARXX, Logixx are a few along with TriTex. Cost per block is around $12 and they are 5.33 sqft and various thickness depending on your needs. So a 35x43 house would need 234 blocks and about a ton (lift) of rebar, and require roughly 33 cubic yards of concrete using an 8  core thickness.
1 Another type of cinder block such as the Quikrete normal weight block can cost $2 to $3 per piece. 2  A lightweight block can cost $2 to $3. 3  Home Depot, another popular home improvement store located around the country, sells different sized cinder blocks for $1 to $3 per piece. The number of cinder blocks you purchase can also affect the price since the more you buy, the cheaper they will be per block. 2  On average, cinder blocks can cost $1-$4 per piece. 3  Different types of cinder blocks such as a Basalite standard gray block can cost $1 to $2 per piece.