RAM is just an example. In my Thinkpad (T430) I'm able to swap out the CPU, mainboard, keyboard or screen if necessary, like in an ordinary PC. The question is,

RAM is just an example. In my Thinkpad (T430) I'm able to swap out the CPU, mainboard, keyboard or screen if necessary, like in an ordinary PC. The question is, how likely is it that some component will break. From my experience it's not very unlikely over a lifespan of a few years. I mean sure you can have luck with all your computers and you never have any hardware failures, but I wouldn't count on that.