AI Part 1 lecture slides
Computing cost fell about seven trillion-fold between 1940 and 2006 (Nordhaus); AI differs from traditional computing by handling tacit knowledge, in Polanyi's sense of "we know more than we can tell".
0.548 SD to 0.139 SDeducation-based productivity gap without vs with AI access (Cruces et al. 2026, N=1,174)