Why a 70% dominance of PS4 (PS2 like dominance) will be impossible

[DonFerrari]

mind said:
Unlikely, but not impossible, even 75% is possible, because we don't know what's it gonna be like in 5 years(with all the clouds/streaming, etc.).

I put it like impossible because a 75% means that PS4 would need to sell 3:1 on average. So for this to happen on a 5y time frame, PS4 hitting something like 80M (16M yearly) or 100M (20M yearly) both high numbers the competition would be lower than 26,6M (5,3M yealy... considering they already have 9,2M it would need another 17,4M or 3,5M both or 1,75M each which is ludicrous) or 33,3M (6,67 yearly... or using 9,2M already sold needs additional 24,1M or 4,82M both or 2,41M each and that is still low)... I don't think it's possible more than 60% while the gen is going on unless MS pull the plug and wii continues to sluggish, if 75% would happen it would be some years after gen 9 have started.

Even using some doom predicitions like WiiU 16M (going by Nintendo downard trend gen to gen, ignoring Wii) and MS 30M (like Xbox original, don't see MS having less than this fanbase) and PS4 doing PS2 like crazy numbers (160M) it would give it PS4 77,66% but that would demand too much sells from PS4 while dooming for both Ninty and MS... after all by my prediction of PS4 having no more than 160M when discontinued and Xbone around 50M and Wii around 25M that means 85M leadership from their combined numbers... when booth doom it would increase to 114M (a shitload leader) but only a increase of 34% of it.