Like it or not, printed nautical charts are on their way out, as more and more sailors turn exclusively to the electronic equivalents displayed on their plotters, PCs, and a growing mélange of smart phones and tablets. Now, please: Retorts about how one must always carry paper charts, at least for backup, are unnecessary. I’m just reporting what I see, and don’t see, on boats these days, and besides, I love paper charts. I believe that the charts most of us grew up with mark a zenith point in a long struggle by mariners to organize hard-earned data into an amazingly rich, even artful, graphic form. I can’t throw old paper charts away.