* When you create a branch, Git creates a new pointer file inside `.git/refs/heads/` containing the 40-character SHA-1 hash of the commit you branched from. * As you make new commits, the branch pointer moves forward automatically to point to the latest commit. * This design makes branching and switching branches almost instantaneous, regardless of the size of the repository.

# How it works:

💬Answer

When you create a branch, Git creates a new pointer file inside .git/refs/heads/ containing the 40-character SHA-1 hash of the commit you branched from.
As you make new commits, the branch pointer moves forward automatically to point to the latest commit.
This design makes branching and switching branches almost instantaneous, regardless of the size of the repository.

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Apurv Gujjar

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