HEAD^ is the revision before the current
HEAD~2 is the same as HEAD^^ and the revision before HEAD^

Don Norman

What Was His Point?
•
The ability to
master complexity
is not the same as
the ability to
extract simplicity
•
When first getting systems to work
...
.

Focus on mastering complexity
•
When making system easy to use and understand

Focus on extracting simplicity
•
You will never succeed in extracting simplicity

If don’t recognize it is different from mastering complexity

git branch -a --sort=-committerdate

git push origin --delete <branch_name>