At the very best, all he'd end up with would be a crude approximation to himself.' '
At the moment, there are only a few crude approximations of this virtual-reality technology.
Even at best this is a rather crude approximation.
Humming a little under his breath, Coyote shaped the sand into a crude approximation of a human figure.
That isn't precisely correct, but it will serve as a crude approximation.
Both of those models are very crude approximations to reality.
Although it is sometimes simulated by looking through a peephole, this gives only a crude approximation of the condition.
This is a crude approximation because hydrogen bonds have a partially quantum mechanical nature.
Our knowledge is no more than a crude approximation, a reaching toward, never an arriving at.
However, it is a very crude approximation to full global illumination.