What if it weren't a technique, but a drug?
Of course the drug exists, it's called Ritalin, and it has become more popular than beer pong on college campuses--at least during exam week. Like stimulants such as Adderall, Ritalin is commonly prescribed to treat ADHD. But it is widely available--and widely used off-label-- because it is a proven cognitive performance enhancer.
Stanford law professor Henry Greely was among several authors of a 2009 article in the science journal "Nature" supporting the use of performance enhancing drugs to improve brain functions such as concentration and memory in healthy adults. In a later interview about the article, Greely was asked why people tend to belive such drug use would be "cheating."
Well, I think part of it is, drug is a dirty word. Somebody’s talked about our pharmacological Puritanism. It’s a very love-hate relationship, as all of us who enjoy a glass of wine know. I mean, our society is probably one of the biggest users of drugs that change mental states, and also one of the most negative toward them in this odd sort of way. Well, there’s some good reasons to be worried about drugs, and we’ve laid some of them out, particularly enhancing drugs: safeness, coercion and fairness. And those are appropriate concerns, but they’re not knee-jerk concerns. They’re not, “All enhancing drugs are bad in all circumstances at all times.” Right now, to the extent the public has thought about this issue at all, it’s kind of the knee-jerk “drugs are bad, enhancement is bad, let’s ignore it.” Not a good solution.
(Greely's point is a good one. Indeed if we were told that a common supplement such as Vitamin C was shown to dramatically enhance brain function, few people would consider it a moral issue. )