I used to think that people who said they can't taste the difference between things were just being assholes. Then I got covid, and I lost most of my sense of smell, and my taste was reduced to the basics. Pepsi, and a ripe pear tasted identical to me, other than texture. They were both sweet and kind of sour. It made me think that some of these people might just have trouble tasting, and they don't realize it. Though I still think most of them are being assholes.