Yes, lag is a function of the speed of light. I'm encouraged by LEO satellite connections as 1) you're not dependent on being close to a land-based connection (whether cable/telephone/wireless carrier), 2) not dealing with an approximate 33750 km distance for a geostationary orbit which means an approximate 250 ms minimum enforced lag each way due to the speed of light (in a vacuum) being approximately 300000 km/s. What will take away from those two very beneficial side effects will be 1) cost, 2) bandwidth restrictions (if any), 3) hand-off experience and/or performance, and 4) any disadvantages that haven't been discovered yet. Lag will never go to zero, because physics. Yet millions of players deal with lag now. The challenge for all content streaming is ubiquitous connections for everyone and that is likely to be solved technically (see wall of text above) but maybe not socially.