memories are a construct.
really. those things you think are indelible moments permanently etched into your brain... not so much.
I learned several things during the 3+ years that I slogged through graduate school, and this was one of them. You aren't remembering near as much as you think. You've just constructed the memory as you "recall" it from "facts" that you believe to be true. In that sense, you might as well play "let's pretend".. its about the same. you get very similar results.
Not so much of a point on this rant. I just wish people would stop being so surprised when studies like this show up.