We don't have to remember what we can look up on the Internet. We can take thousands of photos easily, so a lot of our memories are "backed up" by pictures. We no longer just remember the trip to some place (as our parents did), we have a few hundreds of images, documenting every significant aspect of it. Projects are underway to make it possible to record audio, images and video and organize it all for easy retrieval. Current hardware makes it possible to record and store a constant videofeed of a human life. Steve Mann does it already.