&gt;It doesn&#x27;t require any processing power on your computer, besides the power to record and send your voice.<p>Sure, however this approach has a lot of downsides, such as utter lack of privacy. As we&#x27;ve seen many times historically the pendulum swings between thin and thick clients.<p>Right now the computational power needed to do this kind of processing is very expensive so it&#x27;s done on server. However, faster hardware will make it possible to do it on personal devices as well.<p>Also worth pointing out that privacy doesn&#x27;t exist for most people already. The mode of interaction with the computer isn&#x27;t going to change any of that one way or the other.