Because of recent improvements in the accuracy of theoretical predictions based on large scale ab initio quantum mechanical calculations, meaningful comparisons between theoretical and experimental findings have become possible.
A book comes and says, 'Write me.' My job is to try to serve it to the best of my ability, which is never good enough, but all I can do is listen to it, do what it tells me and collaborate.
A poet or prose narrator usually looks back on what he has achieved against a backdrop of the years that have passed, generally finding that some of these achievements are acceptable, while others are less so.

