-- what weighs in that balance, because to go back for one second, in practical, economic terms I gather the difference between a copyright that lasts for 100 years, lasts for 1,000 years, lasts forever, is probably something less than 1,000 -- on $1,000 a penny.
the difference between a copyright that lasts 100 years or last 1000 years is probably about $2000 on a penny
( z1 differ :ARG1 ( z2 copyright :duration ( z3 or :op ( z4 temporal-quantity :quant 100 :unit ( z5 year ) ) :op ( z6 temporal-quantity :quant 1000 :unit ( z7 year ) ) ) ) :ARG2 ( z8 about :op ( z9 monetary-quantity :quant 2000 :unit ( z10 dollar ) :prep-on ( z11 penny ) ) :mod ( z12 probable ) ) )