&gt; for at least ten life-size holographic displays.<p>I remember reading somewhere that the bandwidth of the optic nerve is about 10Mbit&#x2F;s.  Given that we&#x27;ve had 10Mbit&#x2F;s Ethernet for years, couldn&#x27;t it be said that we already have the hardware to build a display that is indistinguishable from reality, and it is now &quot;just&quot; a coding problem, in that if a 10Mbit&#x2F;s stream contained exactly the right information the brain would interpret it as reality?