Do You Double Blind an Experiment?

When you have more than one objective variable, it actually can kind of become optimization problem. A a desirable property when you can get it, which is not always possible, is to double blind an experiment. So it's something to consider when doing experimental design. You do seem to do this in both personal and professional life. Ye. Well, i feed it to you. I also feed it to yoshi the bird, but she has no preference. Are my preferences alined with your objective variable of healthiness, tastiness and moisture? I don't know. Ah,  it just means that, since you knew the inputs, you maybe could have been biased to the output.