Once upon a time some experts were predicting that the mainframes were enough and there was no use for any type of more advance computers.
Much later, another group of experts were saying that 640K of memory is more than enough.
Now, there is yet another group of experts are telling us "ordinary programs" don't need so much CPUs.
See the pattern here?
Back in the time of monochrome, who would ever thought of a "GPU" having 1600 stream processors?
The most advance "video game" back then was "Pong". Graphical simulation program was unheard of.
Not even the best expert at that time could imagine the "ordinary" applications we are using today --- like Terragen, like Maya, like Blender, like Povray, for example.