It's akin to the lobster-in-a-boiling-pot scenario.
Put a lobster in already boiling water and it screams, stick it in room-temp water and heat to boiling and the lobster won't notice it's being cooked until it's too late...
Put a lobster in already boiling water and it screams, stick it in room-temp water and heat to boiling and the lobster won't notice it's being cooked until it's too late...