The course states "by default, a process starts and skips only when a condition is present"

and

"by default, a stage never skips unless a condition is present"

It seems like these are two ways of saying the same thing. A process will start and only skip when a condition is present. A stage will never skip unless a condition is present. It seems both a process and a stage will always start unless there's a condition present.

Am I misunderstanding this?