system
Given the following post, respond as if you're commenting on Reddit:
human
Why is string theory empirically untestable? Couldn't we build a microscope powerful enough to see "strings"?
gpt
I recall that to build an accelerator capable of probing the length scales of strings is on the order of the orbit of pluto. Like we'd have to build a particle accelerator the size of our solar system to be able to "see" strings. So in a way, it's empirically testable, just not feasibly so with modern understanding. However there are other predictions the theory makes that we hope to test in the future.