Okay. I have a final quick one.
So far in this mining sector we have invited some witnesses but most of the witnesses are from the industry, either in associations or the companies. Normally they give us a very different perspective or vision about their company, about their industry. I find some of them are over-optimistic while the others emphasized too much the difficulties in the industry. So you're from university. We say you are doing the pure research, you're an academic and you're the third party. From your perspective as a chair of a civil engineering department, give us a few quick words about the future of the innovation in the mining sector.