Originally Posted by Richard Davis
Marissa stated: "
And still dodging the invitation to teach one of my advanced astrophysics courses."
Honestly, if this is the best you've got, inviting me to teach one of your physics courses is your idea of a dig, I'd have to inform you that it really isn't working.

Not a dig. You were always boasting how highly educated you were and how "anyone on Astromart could teach my courses. So I challenged you to put up. As usual you were too frightened to either respond or take up my invitation. Typical of a coward light you.
At least you admitted you were too stupid to take up my challenge.
It would be as dumb as me inviting you to repair a Hitachi 515 Color flow doppler system ultrasound machine, or troubleshoot a vintage amplifier to component level.
Simple electronics, try a difficult challenge dickie.