I think an MVP could even just represent people as a simple ball of light. I think just 3d audio with <i>any</i> 3d representation of position might be enough to give people a &quot;fix&quot; of presence with their loved one.<p>I actually think you could probably make a standalone stereo Bluetooth headset&#x2F;glasses with clear lenses and two lasers that project a single 3d stereo positioned dot onto each lens. You&#x27;d just need a chip to position the audio and the two dots so I think you could do a really compact low power device and sell them for &lt;$100.<p>You could just walk around your house, and the dot would stay close to you and talk to you and you would feel like they were in the house with you, rather than inside a little phone.