@Steve and Jenise:
I found both your comments interesting (in that I largely agree with what you're saying as well as the two comments connecting quite nicely.
Steve says:
The broad thrust of all the evidence is clearly that we find it very difficult to recognise tastes, flavours and "quality" in blind tasting, and if additional cues (true or false) are given we tend to follow those rather than what is in the glass. These are not sentiments to be argued against - they are facts established by experiment - if you doubt the results, criticise the experiments and design better ones.And I agree entirely. The broad thrust is just that, and will always be thus with a 'random', undifferentiated selection of participants. If you begin to apply this more carefully, under more controlled and segmented circumstances, and with a sounder premise, you'll begin to see different results. Essentially, this one experiment is useless, and would be considered so by researchers and marketing specialists. Work with subset groups, and your results will begin to show some pretty distinct variance.
Jenise, I think your initial comments support what Steve is saying quite clearly.
And your final lines
But what you don't know--because you primarily drink one style of wine (evidence of lack of objectivity in itself, I think) in relative seclusion--is how much more easily influenced your tastes are by perception and external stimulii than most, and when I say 'most' I'm referring to those of us for whom fine wine is an important and fascinating part of life.are also interesting. And correct. But my takeaway would also be that Covert in particular, in the way he both approaches and responds to the wine he drinks, is also more deeply affected by the
internal stimuli than most.
Finally, the comments on cosanguinuity are right on as well. Doesn't always happen of course, but couples do eventually show convergences...or at least coordinated compromises.

Not always, of course. My wife and I have reached cosanguinuty on many things...and many wine types...but just as often our tastes don't coincide. Her expressions and reactions have a strong influence on me----how could they not---but I don't always agree with her and her tastes, and vice versa.
That 'agree to disagree' most often shows up in regards to wine and pizza.

(And even more in pizza than wine.

)