Perfect 3D television and movies without those horrible glasses? They're closer than you think. I'm sitting in Paris and some butterflies are fluttering towards me. Loads of them, perfectly clearly. I could allow one to land on my hand, or catch one of the rose petals being blown towards me - except I can't, because they're not real. They're images on a TV in high definition - and in perfect 3D. They look life-sized and real, and I'm not wearing any silly spectacles other than the ones I wear all the time.
People have been working on convincing 3D without the glasses for a long time and the demo is breathtaking. It's on a prototype Philips TV, which won't be available for a while; it would cost Â£10,000 at the moment, but that's expected to be vastly lower when it reaches the mass market. Philips isn't the only company investigating the possibilities; Luxembourg-based SeeReal has also made technological developments in the area with its Viewing Window Technology, aiming to reduce the amount of pixels you need before 3D works.