Horizontal scaling gives you some failover and flexibility that you normally cannot get with only vertical scaling.

The ones he was attracted to were young and smoking hot, the kind that were attached to beautiful bones. The kind he could jump and dump without promise or commitment.

This is by no means reducing chemistry to a sub-division of physics, and even less making it a defenceless victim of Don Quixote-like pseudomathematical and metachemical theorists; a fundamental knowledge of natural history is still an essential condition for any further progress in an understanding of chemical bonding.

He got a good grade on the test.