This is a place where you’d expect people to know what TI actually does, not just the calculators. “Ever heard of X?” is an idiom that means something like “he

This is a place where you’d expect people to know what TI actually does, not just the calculators. “Ever heard of X?” is an idiom that means something like “here’s an obvious example you should already know about.” It doesn’t imply that knowing about it proves something. It’s a perfectly fine argument that just says, “TI exists and attracts educated employees.”