Engineering

As always in engineering, there are limits to what we know.  We’re used to this—it feels natural.  But to physicists, defining the border between what is known and what is unknown is irresistible.  They may fret over whether Schrödinger’s cat is alive, dead, or both; engineers will look at the airtight box, then at their watches, wait, and then confidently say, "Dead.  What’s the next item on the agenda?"