There been some fun studies on that same subject - people not being able to tell the difference between red wine and died white wine or pate and dog food:
Wine tasting is bullshit. Here's why.
Bull$hit is a strong word.
We are all different in our sense of taste, smell, hearing, seeing and feeling. They are all affected by our thoughts, perceptions, environment, sensitivity, education, marketing, stereotypes and wishful thinking.
A grand master sommelier, there are less than 100 in the world, IIRC, that can correctly identify over 500 scents/ flavors that may/maynot be in wine. There are thousands of wine experts, some who are, some who aren't, some who get paid to be, some are wannabes, some are in their own heads, most are never gonnabes.
Wine is a very simply yet complex liquid. Every drop was once a raindrop, falling through the atmosphere, landing on the dirt/ rock/ whatever and carried up through the plants roots, vines, etc, where it reacts with temperature, sun, light duration, pollution, weather, frost, molds, yeasts and becomes the juice of a grape,in a cluster, of a vine, in a spot of a vineyard, in a vineyard, of a AVA, of a state, region,country, etc. They are affected by how, when, ripeness, weather, they are picked, stored, crushed, soaked, type of yeast, cleanliness, ferment temp, sugar, acid, and time. It is influenced by concrete, glass, stainless, toasted oak, temp of the toast, country of origin of the oak, size of the container and time spent in that container.
This liquid gets treated by even more factors, ie natural and added sulphites, enzymes, cleanliness of bottles, type of cork, natural or synthetic, or screw cap. Exposure to oxygen, heat, cold, vibration, the list goes on and on.
So, that bottled fluid, can actually be experienced differently, because the fluid could actually be different but very similar, by people who are different but very similar, because of different but similar expectations, under different but similar conditions.
And if you are still reading this post, whether it makes a difference to you or not, but definitely not BS. It is similar to running firecalc or some other retirement calculator but different. YMMV.