For every case where there is excessive whitespace, I see 10x where there is way too much clutter, and not a single place where one can click (for example, to b

For every case where there is excessive whitespace, I see 10x where there is way too much clutter, and not a single place where one can click (for example, to bring the browser's window back into focus) without activating something. This sounds like a problem of not talking to your users enough, not a problem of too much whitespace.