No. I don't have any idea about the engineering behind the...

No. I don't have any idea about the engineering behind the Hadrian. But i can tell you now! Us builder's have very good knowledge of the engineering around building! We work with engineers every day. It was never going to be successful or commercially viable. So you are really out of your depth here! Everyone is pinning their hopes on Wienerberger! There is so many different blocks in a porotherm build for the Hadrian to build! Brick and blockwork have been around for a thousand years by hand and there's a reason for it.