Physical Hadron Properties from Lattice Data at Large Quark Masses

We review recent progress in the understanding of the functional dependence of hadron masses and electromagnetic properties on quark mass. This is a fascinating area in which there has been a very productive interplay between hadron models, chiral perturbation theory and lattice QCD. The results lead one to expect to be able to deduce quite accurate hadron properties from the next generation of supercomputers, with speeds of tens of Tera-flops, rather than hundreds.