Links
The internet , and software in general, would be so clunky without links.
I'm not even sure it would function at all.
When you extrapolate the idea of digital links - to the idea of mental links, you can really change the way you think.
Mental links, or linking ideas, can really stretch the way you think. You can store ideas within ideas, and extrapolate on ideas that you never though of before.
More later.