It was a footnote in an article I read about a monkey using blindsight and that there had been several experiments with humans proving blindsight existed and that surprised me. As a footnote.
There have been several experiments that indicate people can see without using their visual cortex.
The trans humanist stuff was so cool to me. Designer vampires specifically designed for analysis and command. I love books where concepts are explained and you kinda get it, but definitely requires rereads. Anathem by Neal Stephenson is another one.