"The currents of 1–2 mA make it easier for neurons in these brain regions to fire. "
wouldn't this just make you do connections in your reasoning that you usually wouldn't do (maybe for a good reason) (is this why this method is ethically questionable?)
The question I think is, is that "good reason" a reason that was relevant as our brains were evolving millions of years ago, but is irrelevant now?
Our brains evolved in a way which maximized reproductive potential, and while having strong cognitive abilities was clearly favored to an extent, there was a constant tradeoff between larger brains and food/energy input. Now that we don't have the same critical food shortages, we can set our own objective functions. Ex, now most people would probably choose a brain with +50 iq points which required an extra 1000 kcals a day, but a few tens of thousands of years ago, those requirements would probably have been fatal...
wouldn't this just make you do connections in your reasoning that you usually wouldn't do (maybe for a good reason) (is this why this method is ethically questionable?)