George Duke wrote on Thu, Mar 25, 2004 05:44 PM UTC:
On the contrary, Hetacomb proves effectiveness of relational measures, of
which there will be many more. If Hetacomb is 64 squares, its two piece
types make PTD of 2/64, so low that it tolerates a very high Power
Density, other things equal. While true that PD is useless alone, as
evaluative systems develop (necessary for sheer number of alternatives),
PD stands as important measure subsuming extensive ideas of Ralph Betza
and others on piece values (mobility, forwardness).