Up until 2019 or so (maybe even early 2020), I would've laughed at this notion. Now, it's not a bold prediction. I still don't think it will happen. To me, there are going to have to be some key factors in place to make Switch pass the PS2's total of 157.68 million units. All or several of these factors need to happen...
1. There needs to be an SKU of Switch that reaches $99.99 or less. It doesn't need to happen too soon. It could even wait until when the Switch's successor launches or after that.
2. Some massive unannounced titles like Mario Kart 9, Nintendogs, Super Mario Odyssey 2, or Pokemon Gen IX.
3. Switch's successor doesn't launch until at least Q1 2023, and later than that would be better for the Switch's sales.
4. Switch's successor doesn't explode in popularity right away (or Nintendo can't make enough to meet demand) and eat away a ton of the Switch's sales
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima
