Will you need an office in the future? If so, will it need a chair? The latest indications from online, collaborative, virtual reality games are that your office may not exist in the physical world, so you may not need to be physically present at work. It could all exist in a virtual world, a three-dimensional universe resembling the real thing but without those troublesome physical quirks, such as distance and speed, being barriers to your work’s progress.
If your office does have a physical presence, it might be defined as the IT equipment that you wear, connecting you wirelessly and automatically through keyboards, visual display unit spectacles and earpieces to a network of peers that constitutes your corporation. You could wear your physical office but perceive a virtual office as a real space.