Why I don't think the PS4 will pass 100m

[Wazowski]

PS4 if it falls hard after 6 years:

2013: 4.2m
2014: 11m - 15m total
2015: 18m - 33m total
2016: 23m (peak) - 56m total
2017: 20m - 76m total
2018: 16m - 92m total
2019: 8m - 100m total
2020: 4m - 104m total

even if it falls hard after 6 year (unlikely) it has a great chance of doing 100m