On one level, it’s brilliant. On another, it’s undeniably, pervasively creepy, to a level we’ve hitherto been prepared for in human society. These things are designed to be forgotten, but with the Facebook Timeline, much of your life is all but indelible, published front and center until you go through each item individually and hide or delete it.

Gratuitous picture of human skull on my desk wearing welding goggles.

Yes, it's plastic.