Architectural fashions change and now its suggested that glass skyscrapers are falling (no, that in that way) out of favour with the architectural elite. We have had granite and stone so if architects start to move away from glass then what’s left? Well, it will have to be a sexy new material, and expensive. Car and cycle designers seem to love carbon so maybe that will be the new one. Matt black office buildings of the future! Or maybe Apple will design one and it will be ultra-light aluminium and too thin to fit in! I My suggestion, create them out of the most inexpensive material you can find that works really well and the cover them in (no, not in chocolate) in greenery. And you still shouldn’t throw stones (among other things).