In her piece "A drop of love in the cloud" (2018), artist Fei Liu writes about the like/heart button as a flattening affordance of giving affirmation and love. The text-editor provides a much more expressive input.
But even people who can't communicate well because of language barriers can express love through actions, like cooking food. Can we create other "love inputs" that might allow us to "reach across the chasm of a seamless signal"?
What is expressing "real" love or affirmation about? Is it about effort, thoughtfulness, generosity, something else? What might a thoughtful or generous interface feel or behave like?
There are many visual design guidelines but the basic principle might be summarized as the Visual Information Seeking Mantra:
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Overview first, zoom and filter, then details-on-demand
Each line represents one project in which I found myself rediscovering this principle and therefore wrote it down it as a reminder. It proved to be only a starting point in trying to characterize the multiple information visualization innovations occurring at university, government, and industry research labs.