I'd like to believe you about Pt and Ir catalysts, but I just had a chemistry PhD student complaining to me that some paper's processes were too uneconomical be

I'd like to believe you about Pt and Ir catalysts, but I just had a chemistry PhD student complaining to me that some paper's processes were too uneconomical because of needing too many platinum atoms in the catalyst. The point was about new processes being viable, not existing techniques.