note slow terminal in ed

writing/ed.md

@@ -8,6 +8,21 @@ You would type a command to the computer, and it would type out any errors.
 It would not waste paper, ink, and time by typing out `COMMAND RUN SUCCESSFULLY` after each command.
 A silent machine meant a happy machine.
 
+To fully appreciate `ed`, you can slow down your terminal with the following command:
+
+
+```sh
+ff=/tmp/bashpipe
+mkfifo $ff
+( cat $ff | perl -We 'use Time::HiRes;$|++;while(read(STDIN,$c,1)){Time::HiRes::usleep(15000);print $c;}' ) & exec &> $ff
+
+```
+
+Try running `dir` and `dir -F`!
+
+Okay, now onto `ed`...
+
+
 # Basic Usage
 
 Open a file: