when looking ( starring at the red dot for 30 sec.) place at the center of a negative from a photo, look away and blink your eyes rapidly, well just try it and see what happens,
I cut my teeth using a CLI and I still use it for modifying (SQL) databases...eliminates size limitations that are instilled into graphic interfaces...
for Windows it's simple to save commands as (click-able) batch (.bat) files...likewise with "shell scripts" for nix systems...
Are Ya'll talking ( Dos Cammands ) what is CLI ? I remember the DOS OS computers, I was not one who could type, So I was glad to see the first Windows OS, where I could use a mouse ( point & click ) although now that I can find the letters on a Keyboard I could probably adapt to DOS commands,