Hey Known, very nice video. And - OMG - I didn't know US2 had that effect of gravitational lenses.
I am a physics teacher for engeening students and making this kind of videos were my first motivation to buy US2. However, Im far from accomplishing this objetive since I'm too bad at dealing with the lack of documentation of the current alpha versions. I guess I have a lot to learn from your videos, I already subscribed to your channel. Best regards, Mutley.
[EDIT] BTW, seens like you have a hell of a computer.