To focus on the section about Alzheimer’s disease... For the sake of argument, I will grant the power of general intelligence. But the human body with all the statistical variations may make solving the problem (which could actually be a constellation of sub-diseases) combinatorially expensive. If so, superhuman intelligence alone can’t overcome that. Political will and funding to design and streamline testing and diagnostics will be necessary. It doesn’t look like the author factors this into his analysis.