Philip Baldi

"Many points of controversy surround the reconstruction of PIE, and indeed surround any reconstruction effort. Some are methodological questions (for example, how do we distinguish archaisms from innovations?); some are philosophical (for example, what kinds of evidence are admissible in reconstruction?); some are simply differences of opinion based on the preconceptions and orientation of the investigator (for example, which is more archaic, Hittite or Sanskrit?)."