  By studying Rozansky-Witten theory with non-compact target spaces we find new
connections with knot invariants whose physical interpretation was not known.
This opens up several new avenues, which include a new formulation of
$q$-series invariants of 3-manifolds in terms of affine Grassmannians and a
generalization of Akutsu-Deguchi-Ohtsuki knot invariants.
