let's take maybe a two three minute break as I know Jonathan has a lot to cover and let's maybe restart around 712 713 for the last part of lecture Jonathan do you want to try to take control of the screen here um yeah sure okay um let's see can you hear me okay yeah my I might turn off my camera too so that my internet connections were reliable but but we'll see just let me know if it's not working well okay um I guess I can just jump in and talk about more about bits back it's possible to address a question on chat oh yeah questions on