Dark energy and dark matter are fundamental mysteries in understanding our universe. With upcoming cosmic surveys they are ripe for advances. I highlight some new handles on dark energy and new cosmic probes that test both cosmic acceleration and the dark matter distribution. Time delays from strongly lensed active galactic nuclei give precision distances complementary to those from supernovae or large scale clustering. Redshift space distortions of the 3D pattern of galaxy clustering probe the matter growth rate
and laws of gravity. Both require techniques and surveys that KASI is well positioned to contribute to, ready to make new discoveries in cosmology and astrophysics.