@marco_org Apple has a patent that can reduce the gold content of their 18k gold by half. veg.gy/ZhMF2— Sumocat (@SumocatS) Mar 6 2015 1:58 PM It’s inartfully put (140 characters is a bitch), but as a practical matter he’s correct. Apple’s patent application is for a method that allows them to make 18k gold that has, on a volume basis, less gold than regular 18k gold. How can this be? It’s because Apple’s gold is a metal matrix composite, not a standard alloy. Instead of mixing the gold with silver, copper, or other metals to make it harder, Apple is...