The timing of these articles is kind of ironic. Cos is writing in 37, perhaps influenced by conversations with hik, but hyk writes in 19 forty five. Coast was all about trade offshe he recognized, think there're no s quoting soul now, but it's a very cosia notion. There are no solutions or trade offs. You can reduce this cost only by increasing this cost. And and you want to make sure the economy is competitive. Case is very clear. U say one more thing about angtyou reaction. We've talked about many times on this programme. Is the use of knowledge in society by hyak,. which is 19 forty five american economic review