Put another way, what’s the point of downloading a terabyte of data in seconds when it takes your computer minutes to process it into something useful? Also, where are we storing all this data that we can download at super fast speeds? Most computers cap out at around 8 GB of RAM (though this does seem to be trending upwards) and SSDs read/write speeds are measured in megabytes (with most capping out at single digit gigabytes) so with terabit we are potentially downloading more data than computers can physically store per second.
Reducing latency though would be the real game changer. When Starlink finishes building out it’s fleet, we could see worldwide latency drop to he point that video games would no longer need to have regional game servers because of lag! But then the problem becomes “how to do you manage all those players on one server”? Annnd we’re back to our CPU limitations.