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Also, saturation up until a certain point can be a good thing because you can get in the suggested tabs of other popular videos, however there can be a such thing as too much saturation if you're not producing content better (higher audience retention and CTR) than the competition.

Everyone talks about too much competition, but what most people fail to account for is that viewership is and has continued to increase accordingly so even though there's more competition, there's more viewers as well.

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And out of all the "competition" how many actually produce "good" videos that perform well. And how many of them actually know what they're doing and are applying a good strategy.

The number gets smaller and smaller and if you do continue to produce videos better than the competition then it doesn't matter how much saturation there is.