Do you ever complain about your job? Watch this; never complain again. These men work in such high stress/heat atmospheres that an easy day for them is scaling a 45 degree cliff with forestry supplies equivalent to their body weight.
Although best watched with 3D glasses, one can still get a feel for what director Keiichi Matsuda is trying to convey. He's implying that our future is filled with constant connection to information, which has both positive and negative consequences.