Platinum has a long history in industrial applications, often in surprising quantities. There's got to be a few orders of magnitude more of it in a catalytic c

Platinum has a long history in industrial applications, often in surprising quantities. There's got to be a few orders of magnitude more of it in a catalytic converter than you would want on a chip die. Titanium dioxide is better known as white paint pigment. Or sunscreen. People smear it on their skin in large quantities. It's not what you'd call scarce.