But... Even on a SSD, the read speed only gets up to about roughly 500-600 MB/s, plus you’d have the transit time of walking from your desktop to their desktop and installation.
That’s a lot of slow time.

Most of the data in all MMO’s is just interpolated positions from received final positions.
Basically, to create the mmo in suggestion, instead of sending a single object position as you would in a current game, you’d have to send bone position data for the character.
In a very low graphical setting, you could assume…