Directories aren’t surging. There isn’t this nascent directory movement fomenting - ready to take on the world. Directories aren’t trending.
But there is a certainly really sweet little directory community now. From the Marijn-inspired stuff listed in Directory Uprising to the link-sharing ‘yesterweb’ collected around sadgrl.online - or the originals at Indieseek and i.webthings.
Barnsworthburning (by Nick Trombley) is a very formidable addition to this community - a clean, multilayered design and an innovative bidirectional index.
In order that the mind may not be taxed, moreover, by the manifold and confused reading of so many such things, and in order to prevent the escape of something valuable that we have read, heard, or discovered through the process of thinking itself, it will be found very useful to entrust to notebooks...those things which seem noteworthy and striking.
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.