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.
They were keen for me still to play the piano, which I was going to, but 45 minutes of piano would be extremely boring. I like a bit of light and shade.
It's not a bad thing for a writer not to feel at home. Writers - we're much more comfortable at parties standing in the corner watching everybody else having a good time than we are mingling.