The thing is 10mil is too easy. We all know the floor is 9mil like worse case scenario and 10mil-12mil os most likely where its gonna be. 15mil is pushing it especially because its literally under a month as well as itll mean ssbu will outsell the best smash bros game in a timeframe thats crazy AF lmao.
Believe in me that believes in you that believes in my BOLD predictions. If not grab a seat at the Crow Feast Table.
Well, I'm just doing some rough estimates here. The front page of VGC has the install base of Switch at about 22m. Add about 10m more after the holidays and you've got roughly 32m. When you say that 15m people are going to buy Smash you are saying that almost 50% of Switch owners want Smash. No way I can believe that. Smash is big but not that big.
If you were saying that about 50% of Switch owners want Mario Kart, then I might, MIGHT, believe that. But Smash is not Mario Kart. I can even believe 25m lifetime, because I think Switch is going to have a huge install base (and I think Mario Kart will be like 40m - 50m lifetime). But 15m in one month with around a 30m-ish install base? Nope, I just can't buy that.
EDIT: Just want to say I really love this sentence, "Believe in me that believes in you that believes in my BOLD predictions." That's great! You could be a motivational speaker.