Will Google Books, the audacious attempt to digitize every book ever written, have the perverse effect of making books — and ideas — less available, less ubiquitous, less free? Will copyright laws require that most of the books written in the last century be excluded from the new digital online library? Is this progress? This is Lawrence Lessig speaking at Harvard two weeks ago. Lessig’s presentation runs about 28 minutes followed by a 15-minute Q&A.