“Using an insufficiently precise approximation can still get you killed.”
Using an accurate calculation can still get you killed—the universe is not friendly.
Using an imprecise approximation quickly is more likely to help your situation though than an exact calculation arrived at too late. There is an old military leadership axiom to the effect that giving any order immediately is better than giving the perfect order later.
“Using an insufficiently precise approximation can still get you killed.”
Using an accurate calculation can still get you killed—the universe is not friendly.
Using an imprecise approximation quickly is more likely to help your situation though than an exact calculation arrived at too late. There is an old military leadership axiom to the effect that giving any order immediately is better than giving the perfect order later.