The simple description of the process of manufacturing basic plywood is: glue very thin layers of wood "under extreme pressure and heat to create an entirely new, solid and massive material."
I'm waiting to actually see one of these new plinths in person. The "orthogonal layering" description has piqued my curiosity, as I'm wondering if the layers of beech are interwoven, interlocking, or merely stacked. I'm confident the layers are at alternating angles.
So, it remains to be seen: plywood or unobtainium?!?