I wonder if it's a feeling like this: You feel like 1 - 5 are very familiar to you. You've known those numbers the most out of all of them. So you'd rather pic

I wonder if it's a feeling like this: You feel like 1 - 5 are very familiar to you. You've known those numbers the most out of all of them. So you'd rather pick 5-10 which seem more spontaneous and mysterious. Your balance mechanism kicks in and you want to choose something that is in the middle. You choose seven because 7.5 is the actual middle and hey, there's a 7 in that number so let's do that.