If you want to see what will happen, you can run aptitude with the -s switch. It won't actually do anything, but will show you what would happen. The -s switch is "simulate."
sudo aptitude -ys safe-upgrade
Insanity: Doing the same thing over and over and each time expecting a different result.
Democracy is 2 wolves and a lamb voting on the menu. Liberty is an armed lamb protesting the electoral outcome. A Republic negates the need for an armed protest.