What I see here is one of the differences in scientific approaches. Engineering is a hands on actually go and test the thing field. Medicine in many ways is an inferred approach. For example they test a drug and it helps 60% of the people it is considered a success. Engineering requires the thing you build to work 100%. This gives different ways of viewing studies.
Based on the science of the study they would have concluded my wife did not have a G-Spot. Since for 17 years I would poke a bundle of nerves and she would react, but the reaction was to tense up. She would ask me to stop when I was rubbing her G-Spot. This was not a successful stimulation of the nerves.
Now she likes the exact same bundle poked and reacts differently. This proves that mental state is also a condition of the experiment that must also be accounted for. In the case of twins the mental state can vary. So, physiology is only one component to the successful stimulation of the G-Spot.
Sounds like we all need to do more independent research, repeatedly as often as we can.
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