<p>The solution for Q5 (around 40 minutes into the video) has an error. Instead of going bottom-up (i.e, ${(32^{32})}^{32}$), we need to go top-down instead $(32^{(32^{32})})$. While the logic is correct, most of the sequence steps depend on this incorrect rule, even through the final answer does not change. See <a href="/content/two-nasty-exponent-mistakes">this PrepSwift video</a> for the correct rule. </p>