@fresco,
In the middle ages our friend would have been arguing that "heart" is the word we use for "the seat of the emotions".
There is nothing wrong in making false assumption as long as you are prepared to correct them as soon as some new info is available that points to the fact that assumption was wrong. Science is full of such cases and this is normal process of how our knowledge grows. When we don't have enough info on some process we make assumptions which are then used in decision making process.
Brain was for example considered as being used for cooling blood.
Nothing is wrong with this assumption.
If someone was able to measure difference in temperature as the blood enters the brain and then leaves it, and concludes that this is the purpose of brain because at that time he wasn't able to observe or understant complexitiy of neural networks.
Also I have never heard anyone presenting logical explanation of why would heart be source of emotion so I don't think I would say that. This is the same as saying that our soul is where our chest is.
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The vantage point of observing historically shifting paradigms seems to be beyond him.
fresco why do you have to use such complicated words and sentences?
It is really hard to follow your thoughts.
I believe they are hard even for those who use English in every day.
I better looku up what vantage and paradigm means.