[jy133]

Would you push a feature that negative affected your product? 95% confidence you will be able to know if you're feature is indeed positive, negative, or roughly neutral.

[andreasklinger]

I think the core question is:

validation of upside vs validation of downside

as in: i want to avoid pushing something that is worse but i am optimistic (up to even indifferent) about how much something is better

personal opinion: data trains gut-feeling