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A comment on Twice as happy customers means half the marketing spend. Parent comment

Re:Twice as happy customers means half the marketing spend by codefined on Friday June 23, 2017 @06:53AM (#14618231)
Wouldn't it always require an infinite amount of time?

You're summing a series of:

    0.5^n * x
From n = 1 to n = infinity
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Re:Twice as happy customers means half the marketing spend by Sean1708 on Friday June 23, 2017 @09:12AM (#14618885)
Only if you can have a fraction of a subscriber, otherwise there will a finite number of months after which you will attain steady state.
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