If you eliminate the "G" in AGI to include any mechanical, electrical, or otherwise automated non-human computational processes we can use to augment our own br

If you eliminate the "G" in AGI to include any mechanical, electrical, or otherwise automated non-human computational processes we can use to augment our own brain's limitations, i.e. calculators, slide rulers, all the way up to Wikipedia, then AI is clearly the answer so far. Even just books and language, augmenting human intelligence by parallelizing thinking across many humans and not losing knowledge upon death, are huge wins. But for the far future, all of the above seems like a good answer. At least one "something else" is the possibility of nutritional, electrical, or biochemical interventions that can increase brain function without needing to change our genes. Caffeine and beta blockers seem like the best things we've got so far, along with not being in a state of persistent starvation, but there are presumably ways we can do better.