We explore gauge coupling unification and dark matter in high scale supersymmetry where the scale of supersymmetry breaking is much above the weak scale. The gauge couplings unify as precisely as in low energy supersymmetry if the higgsinos. whose mass does not break supersymmetry. are much lighter than those obtaining masses from supersymmetry breaking. https://www.marcelovicente.com/product-category/blondifier-gloss-treatment/