A fair portion of the time people are on phones where they have no idea how fast/reliable their connection is going to be from moment to moment. Whether that (

A fair portion of the time people are on phones where they have no idea how fast/reliable their connection is going to be from moment to moment. Whether that (among other cases) creates an obligation in everyone to account for semi-failure and full failure (let alone retreat to pure markup) is another thing, of course, but the industry would be better and its practitioners more deserving of the term "engineer" if we did.