About 1 month ago, discussed the meaning of story points with Jane Yip. I know that we need these numbers to judge if it is worthy to do some features. But why we only use 1 dimenson? I think that's boz it provides the chance to do knowledge transfer (tech & business) via relative estimate. If we need the exact figures to make it more detail, we should estimate when we break down task (ex. business familiarity, tech level, work balance, etc.)