I liked how you brought economics perspective to understand sustainability. Like you said, a lot of people maybe including me, enjoy the cheaper price of substitute fish and that decrease the pressure on wild salmons. But at the same time, the bland of wild salmon increase and I feel like rareness still attract a lot of people. Eel is one example. Japanese eel are endangered species because of over hunt and the price keep increasing every year. Most people can’t get it for daily meal but instead they eat eel from other places. Now Japanese eel is high bland and super expensive but people don’t mind paying a lot of money to taste the “real” one.