It’s been 19 years since Pixar released Monsters, Inc. with all that CGI hair. Where are my hairy icons? Ones that get all long and knotted as the notifications number goes up.
Why can’t I feel my phone? I found that paper from 2010 (when I was complaining about keyboards) about using precision electrostatics to make artificial textures on touchscreens.
I should be able to run my thumb over my phone while it’s in my pocket and feel bumps for apps that want my attention. Touching an active element should feel rough. A scrollbar should *slip. Imagine the accessibility gains. But honestly I don’t even care if it’s useful: 1.5 billion smartphone screens are manufactured every year. For that number, I expect bells. I expect whistles.
These days I am more interested in the reverse case [of Da Vinci's helicopter]: ideas that could have worked many centuries before they actually appeared. The economist Alex Tabarrok calls these “ideas behind their time”
Curious minds want to know why these ideas appeared so late — and whether there might be anything that would prevent delays in future. One explanation is that the ideas aren’t as simple as they appear.
The bicycle is not as straightforward an invention as it seems. To move from ox-hauled cart to human-powered bicycle requires smooth-rolling wheel bearings, which in turn need precisely engineered bearing balls. Modern steel ball bearings were not patented until the late 1700s, and demand from the 19th-century bicycle industry helped to improve their design.