You are in class
You are in class is Bob the Science Guy telling Nathan Oakley, Quantum Eraser, and Adam that a sextant lecture is school, and that he is the one holding class. The subject is celestial navigation. Nobody in the room signed up.
The public copy sits on Nathan's channel: Flat Earth Debate 2306 Uncut & After Show Chris Boden & Bob The Science Guy
, uploaded 25 May 2025.[1] The upload is titled for Chris Boden and Bob. The celestial navigation sitting is Bob's. Nathan's panel is watching a video Bob made of an earlier session. Bob is drawing. Nathan, Quantum Eraser, and Adam are in that session, talking over the drawing.
The lesson
At 2:33:10 Bob asks the room what angle a sextant actually measures. Adam, a few seconds later, tells him to drop the schoolroom bit: "let's not pretend we're in class, Bob." Explain how a sextant works on a sphere.
Bob draws a location, a line through the center of the Earth, a 90-degree zenith, and a tangent, and he asks them to wait until the presentation is done. At 2:38:43 his narration over that footage answers the "we are not in class" objection in his own voice:
"He also tried to say, well, we're not here in class. Well, yes, actually, you are in class. I'm schooling you on celestial navigation and correcting your misconceptions with it."
He names the tantrum Quantum Eraser opened with, and "this gentleman, Adam," who "hasn't stopped talking the entire time." After that the lesson is his globe sextant: the angle is taken off the visible horizon. At 2:54:17 he says the radius of the Earth has nothing to do with a sextant. "There's no R in celestial navigation."
Whose show it was
At 3:22:20 the 2306 panel stops the clip. Someone tells Quantum Eraser that it was on his channel and that he allowed it. QE says it was a while ago, he was trying to get some pizza, and it was the after show. The answer from the panel is that they gave Bob an audience and opportunities to teach.
Bob's public channel is @BobtheScienceGuy. The older address /user/drbob420 is that same channel. A pass over the public uploads there did not turn up a separate copy of this session. The channel does carry his solo sextant lessons:
What does a Sextant Measure
(3 May 2024)The Geometry and Mathematics of a Marine Sextant
Sextant Corrections: Dip, Refraction, Index Error and Solar Diameter
How to Use an Artificial Horizon With a Sextant
Find Your Latitude With a Sextant at Solar Noon
Quantum Eraser's public channel, @quantumeraser4833, has no upload titled as this after show. The copy that is still easy to watch is Nathan's.