Molecular “Black Cloud” B68 toward the constellation Ophiuchus sillouetted against a region very in stars. VLT ANTU/FORS1. Credits: ESO

Get ready to re-think your ideas of reality. UCSD Kim Griest as he takes you on a excursion, addressing some of the massive and tantalizing bits of evidence which suggest that what goes on in determines the properties of the three-dimensional existence we know and love, and discusses how that reality may be but the wiggling of strings from other .