michael from the there-should-be-limits-to-freedom dept.
Grump writes "This story reports that 'The makers of TiVo and ReplayTV digital video recorders have agreed to limit how long consumers can keep pay-for-view movies stored on future versions of the VCR-like devices.' Is this fair, or erosion of more fair-use rights?"
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"