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?
We might be closer than we think to cures for depression, hypertension, and yes, even obesity.
The answer to scurvy was just one thing, plus a few wrinkles — mostly “not all citrus has the antiscorbutic property” and “most animals can’t get scurvy”. This was only difficult because people weren’t prepared to deal with basic wrinkles, but we can do better by learning from their mistakes.
This means don’t give up easily. It suggests that there is lots of low-hanging fruit, because even simple explanations are easily missed.
Lots of theories have been tried, and lots of them have been given up because of something that looks like contradictory evidence. But the evidence might not actually be a contradiction — the real explanation might just be slightly more complicated than people realized. Go back and revisit scientific near-misses, maybe there’s a wrinkle they didn’t know how to iron out.