The mathematical sass is strong with this one! The meme brilliantly combines relationship drama with linear algebra. When someone accuses you of "projecting" in psychology (attributing your own feelings to others), this mathematician claps back with "ONTO WHAT SUBSPACE?" - because in linear algebra, projection operators map vectors onto specific subspaces.
The diagram even shows a proper vector projection with basis vectors x₁ and x₂, complete with the orthogonal projection ŷ. It's the perfect comeback for anyone who's ever spent Friday night with eigenvalues instead of actual dates. Next time someone accuses you of projecting, demand they specify their reference frame!