Saying he didn't bother to know is pretty uncharitable. He was involved in the business side of things! There was no reason for him to go poking around in all the sciencey... stuff.

Whereas I - erm. Ihad access to everything on Hyperion's network, a lot of time, and a personal interest in eridium. That's what slag is - a byproduct of the eridium process. Plus I was involved in many of Jack's pet projects by default.