I'm just giving an example. Back in the early 1990's, a 20 MB hard drive was top of the line. I'm using sound cards as an example to how the future of physics cards might be. Sound is often commonly found onboard the motherboard nowadays. All I was doing is using something related to explain what path physics cards may take for the future. At the moment, mainly hardcore gamers would get it.

"You level up the fastest and easiest if you do things at your own level and no higher or lower" - useful tip My 2D game - release on Jun 13th; My tutorials