I finally get to sound like I’m doing physics.
\begin{equation} L \subseteq P \subseteq \text{PSPACE} \subseteq \text{EXP} \end{equation}
by space hierarchy theorem and time hierarchy theorem, we have also that:
\begin{equation} \text{P} \subset \text{EXP} \end{equation}
and
\begin{equation} L \subset\text{PSPACE} \end{equation}
so we know that one of the subset things on top is a strict subset. There’s also a bridge P \subseteq \text{NP} \subseteq \text{PSPACE}. L =^{?} P We believe that L \subset P, but we can’t show this. L =^{?} \text{NP} We believe that L \subset \text{NP}, but we can’t show this