Bandwidth really depends on which busses you’re talking about. Within a computer, 8Gb/s is peanuts.
Even in 2003, a single PCIE v1.0 lane could do 2 Gb/s. Today, in the end-user commercial space, a single PCIE 5.0 lane can do 32Gb/s. That’s a connection that can be external to some degree. Not even talking about memory busses and internal caches that are already approaching terabytes a second.
I dunno’, this one’s quite a bit worse. 100 situps, pushups, and squats aren’t exactly easy like doing the alphabet. At least if someone did Saitama’s exercise, they would be in decent shape, just not a well balanced in shape.