Can I recommend that we remove the following section section for now?
If we actually create a cohort with a "then" condition - i.e. watch a comedy THEN subscribe, we can sort of answer the question at hand. The main differences between our cohorts and funnels today are that:
(1) cohorts are backward looking. I.e. If I'm looking at Jan 1, and my watch a comedy is the past 30 days, I'm looking at the users who watched a video in December and then subscribed over that same 30 day period only.
(2) funnels are better in that our conversion windows are a moving target, i.e. if we watch a comedy on Jan 1, I have the next 30 days until Jan 30 to convert.
(3) But funnels aren't the right answer necessarily today... because of our weird unique conversion criteria.
Given all these nuances, not sure this is something that we want to address here.
### Cohorts and Time
We don't recommend using Cohorts in analysis when trying to understand cause -> effect relationships between user behavior. For example, suppose you're trying to understand whether watching more comedy videos drives users to subscribe. You might create a Comedy Fans cohort defined as "Users who performed Watched Video where genre=comedy in the last 30 days" and then breakdown your Subscriptions by whether users are in the Comedy Fans cohort. The problem is that the user might have become a Comedy Fan _after_ subscribing, which doesn't tell you whether watching comedy had any impact on subscribing.
Instead, we recommend using Funnels if you want to understand specific sequences of events with a strict ordering between each other. For example, creating a funnel from Signup -> Subscription and comparing that to a funnel from Signup -> Watched Comedy -> Subscription, to understand what % of users convert after watching comedy.