>That does increase required processing power and upload bandwidth, but not to the point of infeasibility. Most devices now do video encoding/decoding in a ded

>That does increase required processing power and upload bandwidth, but not to the point of infeasibility. Most devices now do video encoding/decoding in a dedicated hardware unit, so those additional streams will have a vastly disproportionate impact on performance and power consumption. Some desktops and high-performance laptops support multiple streams, but most mobile devices don't. It's feasible, but very much non-trivial.