Notes towards a Chat Service

Now:

Slack specifically:

Instead:

A channel overview. On the left is a list of channels and groups. On the right, dominating the screen, is an area showing two converation previews, with avatar lists and a response button. At the bottom is a callout for John Doe, showing an un-responded-to prompt. Below that is a text field with the legend "Say anything!"

A conversation overview. On the left is a list of channels and groups. On the right, dominating the screen, is an area showing a single conversation between two participants as a list of chat lines marked by speaker. At the bottom is a callout for John Doe, showing an un-responded-to prompt. Below that is a text field with the legend "Say anything!"

Why: