a pleasure to welcome. to the show he heads the department of policy. and he says for free and open we need free and open exchange on the web this reform. so let me start with you and let's begin with the absolute basics what is the filter and why does it strike terror into the heart of the content creator community. is a system that is at. it's installed on the platform. and it scans the up and compasses that to the database and if it finds a protected work that it is supposed to block. stopping the upload or it's putting the upload before a person to check whether there was a license for this work and so that's the basic technology and why are people so