Plate Brkt reinforcment

[Toolmaker51]

Here is a simplistic viewpoint.
It doesn't classify as a legitimate debate; but whenever hearing a comment relating to "only made possible by technology", can't help but reflect on how history (both recent & farther back) shoots holes in that.
Manually speaking, all there were until not so long ago; mechanical adding machines, slide rules, log & sine tables, known properties of tensile & shear strength, understanding of incalculable numbers of manufacturing processes, not to mention limitless intuition & experience... Plenty more, too extensive for memorization. Not exactly a requirement to have that ability; knowing how and where to retrieve information is still paramount.

All on drafting vellum via lead pencils and ink

Arming for WWII is a perfect example, as is the beginning of space program, major construction projects Empire State Building, Golden Gate or any other bridge, Interstate Highway System, Hoover or Grand Coulee Dams, landline phone systems (inc not so lowly rotary phone), precision measurement...try to find beginning of that list.