Non-breaking is much more convenient. On the Mac I can use Option-space to insert a non-breaking space and continue, whereas another variant of space would req

Non-breaking is much more convenient. On the Mac I can use Option-space to insert a non-breaking space and continue, whereas another variant of space would require something more (like a key palette). And I attach the non-breaking space to the period, followed by a normal space so wrapping seems fine.