> correct way of learning git is every time you want to use a "complex"/dangerous commands in git, you `cd /tmp` and create a git repository there. then create

> correct way of learning git is every time you want to use a "complex"/dangerous commands in git, you `cd /tmp` and create a git repository there. then create some commits, branches and experiment. you will NOT lose anything, but you will learn a lot. What if your repo with full history is about 30gb?