THIS is it. People are positing silly extrapolations ("We can make steel stronger than bones, so we can make silicon computers smarter/volume than organic ones"

THIS is it. People are positing silly extrapolations ("We can make steel stronger than bones, so we can make silicon computers smarter/volume than organic ones"). It eventually comes down to organic chemistry versus non-organic chemistry. Organic chemistry has far greater dimensions of freedom (ways to combine/exchange energy) to exploit unique nonbinary computational systems. For a macro instance, eyes process "lines" and "spots" by combining neural patterns before the signals even reach the brain, and from this can identify vertical obstacles (like trees in a forest) and threats (like pairs of predator eyes) more quickly at lower energy. But likewise, neurons are not limited to exchanging electrons via a single modality (voltage exceeding threshold). Neurotransmitter chemicals can alter local or systemwide thresholds for certain cells; this amounts to massive preprocessing that silicon can only roughly imitate with massive design efforts (which were effectively done by evolution in the organisms).