Not that kind of wall, not the kind that keeps things out. I mean a wall you hang your treasures on, like pictures or posters or inspirational quotes. A digital wall will do. Facebook had it right when it called a user’s space their wall. Where they got it wrong was charging us to show our friends our walls, while still selling all that information about us to businesses that may or may not have good intentions. There’s a popular social media meme (which may or may not be a way to collect data about you) that encourages everyone to share a picture of themselves now and ten years ago.…