a command line utility to print out text with a method resembling the Spritz method.
make cfastread
cfastread filename
or
cat filename | cfastread
Read more about it here: http://learn2spritz.com/ it's dead.
Spritzer: https://github.com/luisivan/spritzer
OpenSpritz: https://gun.io/blog/openspritz-a-free-speed-reading-bookmarklet/