I predict 80m each for both consoles. 160m life time for both. That's due to the PC market growing and Cloud Streaming. Xbox Live and PS Now will start eating into console sales and more and more console games will cross to the PC.
I think you are the first in VGC I have seem openly saying thinks Xbox Series X will sell on similar numbers as PS5.
They may very well be right. I am looking at it a little differently next gen. If both companies don't slip up at launch i can see gamer's wanting to get both eventually. On that note, the 360 parred with the PS3 and it did it without Japan and Europe so its not entirely impossible. It all depends how these companies launch and the value behind them.
I quoted the wrong post you sent /facepalm
That reply was for your 2nd post.