I'm still using Photoshop 4 that I got in 1996 or so. There are layers, but only one undo. I don't use it enough to justify the upgrade, but I have done a lot of everything in this video from time to time and it is extremely time consuming. This is quite an advancement. I usually give Adobe a lot of crap, but this is really very nice.
But I wonder... are tools like this to manipulate reality making really less and less interesting. Are losing our love of reality because of the dreams we can so easily create?