Yes, I agree... but I think you have more chance at becoming a better writer than you do a singer (if that makes sense). I suppose you can always teach someone to sing (as long as they're not tone deaf) but at the level Simon's looking for, you've got to have that Extra... whereas with writing, there are better writers than others (especially from a story telling pov) but we can all improve in our writing ability (getting the grammar right etc.)