Let:
$\mathbf{P} = \{i \mid i \in \text{people}\}$.
Let:
$\mathbf{V} = \{i \mid i : \text{use Vim to write LaTeX documents}, i \in \mathbf{P}\}$.
Let:
$\mathbf{L} = \{i \mid i : \text{memorized all LaTeX commands}, i \in \mathbf{P} \}$.
If you are $\in \mathbf{V} \cap \mathbf{L}$, then this post is not for you. But you are probably not, as $\mathbf{L} = \emptyset$, and hence $\mathbf{V} \cap \mathbf{L} = \emptyset$. But if you are $\in \mathbf{V} \cap \mathbf{L}^c$, as I am, then you might be interested in the following ...