1994: a UWashington CS PhD student quits their PhD and goes to help @home (IP-over-cable) get started, on the basis that they would provide symmetric up/down ba

1994: a UWashington CS PhD student quits their PhD and goes to help @home (IP-over-cable) get started, on the basis that they would provide symmetric up/down bandwidth at full capacity. How long was it until this became a reality?