You would get penises every two frames. Depending on the speed of the GIF, the result would be flickering penises...

Never have I seen an HN comment that would be this weird when taken out of context.

Just like Fight Club then

Since all of the previous states are there in the repo history, you can make that gif yourself at any moment!

  for c in `git log --oneline --reverse | awk '{print  $1}'`
  do
    clear; echo "$c"; git --no-pager show $c:README; sleep 1; 
  done

is what one could use on a terminal

You can remove the pipe to awk by replacing:

  --oneline

with

  --pretty=format:"%h"