In the past day something has taken up 260GB of space on my hard drive. I used daisy disk to find what it was and initially it just said it was "hidden space" then I found out that it was macintosh HD/.mobilebackups/ but i can access that folder to clean it out. the reason this bothers me is that those 260gb accumulated over the corse of a few hours. In the morning I had 400gb available and by the afternoon I had 200gb. So why is this happening and how can I clean it up.