All of the arguments I can come up with for not allowing the smart surgery/drugs (like it will benefit only the rich, wouldn't be fair etc,) fail on the "Lasik test". I take this to mean that its simply a cultural taboo now and will soon be seen as a curious, archaic belief from the distant past.
I think the main difference here is that we understand (for the most part) how the eye works, but we don't understand the brain. It's orders of magnitude more complicated, so we don't understand all the effects.
In my case, both would be downgrades.
But this is simply not true. As a person who follows the sport of cycling I know that many professional cyclists will use helmets only during races (because they are required to), during training they won't.
Still thats not quite my question. Getting braces for your teeth seems to be ok. Some people are uncomfortable with breast implants while others think they're great (insert your own joke here). What about surgery to make you smarter? In my gut that seems wrong but I'm not sure why.