Since nobody is reading or trying to understand anything I could keep writing for myself end future generations.
Design the concept board construction your grand kids will be using.
You asked Mark what construction, then after while I come up with technological process.
Steps to create 3D board.
1. First we prepare cuboid slightly bigger of boar made of foam weaved with carbon fibres going vertically (90 degree) and 45 degree's in all directions
Foam is used to stabilize delicate carbon matrix
2. Robotic laser will cut from this cuboid precisely desired board shape
3.Next process remove marginal foam to release few millimetres of fibre at surface
4.Applying external skin made of composite carbon fibre and desired bond (epoxy or polycarbonate etc)
5.External skin of board consist then of the reinforcing carbon canvas and anchored fibres penetrating foam foam across.
Now depending on desired mechanical properties internal foam could be removed (dissolved for example) and replaced with other material or gas or liquid.
Could be also left if have sufficient mechanical properties ( for compression)
Such rough prototype could be made even today by weaving traditional board filler with carbon or kevlar thread to be bonded later with external layer -board skin.
OK I think that will be enough... now I could move to Stephen Hawkins to improve on his quantum theory....