what's fftradio?

https://www.youtube.com/watch?v=dq93G6Vt-a8

Toshi suggested on his you tube channel today DMs on TreeChat for those that want to hear his theory of the collapse of BCH's mining profitability in the last 2-3 days. I poked around looking for him, to do just that, but I don't know how to find him. I would think all participants in Tree Chat would be under the People tab....but NO...I don't see him there.