We review recent results in lattice QCD from numerical simulations that allow
for a much more realistic QCD vacuum than has been possible before. Comparison
with experiment for a variety of hadronic quantities gives agreement to within
statistical and systematic errors of 3%. We discuss the implications of this
for future calculations in lattice QCD, particularly those which will provide
input for B factory experiments.Comment: Review talk at HADRON2003, Aschaffenberg, Germany, September 200