I use a wide monitor, but most WP themes are narrow and disappear down into oblivion where my monitor does not.
Of course, elevator rides up and down the scroll bar are the usual way to handle this, but what about horizontal motion? Is anyone prepared to design a horizontal theme? Otherwise, how do we use all that horizontal space?
And there is always the issue of intenet phone screens.
Maybe we need a theme with three ways of viewing, depending on what mode is used to view: a tiny mode for "phone" viewing, a horizontal mode for wide screens, and the good old vertical mode for tall people with flexible spines.