Justice, we are not making an empirical claim at all. Nothing in our Copyright Clause claim hangs upon the empirical assertion about impeding progress. Our only argument is, this is a structural limit necessary to assure that what would be an effectively perpetual term not be permitted under the copyright laws.
This case has a jury
( z1 jury :ARG0-of ( z2 have :ARG1 ( z3 case :mod ( z4 this ) ) ) )