You're right in a sense. I would certainly notice the change if it happened very quickly. However, I would quickly adapt and think it was just normal. (Mind you, my room is about 17 C at the moment.)
Certainly, if someone told me my room was going to be 2 degrees hotter permanently, I wouldn't think twice about it.
> However, I would quickly adapt and think it was just normal.
This definitely does not happen to me in these temperature ranges. 32 is too hot to function no matter how long I sit there. 30 is livable, but permanent discomfort. 28 is more or less ok, through I prefer lower temperatures.
You can feel how those differences affect your body.
Certainly, if someone told me my room was going to be 2 degrees hotter permanently, I wouldn't think twice about it.