"Alright then, welcome to megastructure engineering 101. The syllabus is on the university website, read it at some point in the near future." The human professor looked over the students, his implants tracking their faces, posture, and proportions, culminating in their names and major floating above their heads. This way the professor didn't need to bother remembering anything about them, the university database did it for him. Nobody else knew about it, the students and other staff just thought there was something a bit off about him. Then again, something always seems a bit off about humans.

Granted, the IT people probably never intended for anyone to have such direct access, but if they hadn't wanted anyone to reflexively take over the computer systems of the campus as soon as they stepped on said campus then they should've installed better security.

"For the first two classes, we'll be reviewing things you should already know." They looked around and selected a student at random. "Xntrl, name one of the major issues with Dyson spheres." Why do that lot's names almost never have vowels?

"They cost a lot to construct."

The human rolled their eyes. "Alright then, name a major issue besides the most obvious one."

"Structural stability the closer any given part gets to the axis of rotation."

"Correct," the human stated, selecting another student at random. "Further from the equator less of the weight of the structure is supported by orbit. We don’t use the balloon model of a structure supported by solar winds instead of orbit, why, Jasmala?”

“The stellar lifters and the manufacturing facilities are too heavy for the system to be supported solely by the solar wind.”

“Which is why, despite the name, instead of spheres we use what, Talmphos?"

"Overlapping rings on different axes of rotation."

"Indeed, and what's the other major problem with such systems, Revus?"

"All the energy has to go somewhere, if it's not used then the place heats up."

"And as such the excess electricity is used for, Onk`aks?"

"Antimatter generation, to be used by anything which doesn't have a star as an energy source."

Huzzah, the human thought, this group knows the barest fundamentals a bit better than the last one. Not exactly a high bar to clear. "Indeed. How much must the fusion backup for any given system be able to output compared to the antimatter reactor, Selai?"

"Minimum 12.5% of primary output."

"Correct. Back to Dyson spheres then, they by law must be built to handle luminosity greater than that of the star they're constructed around by how much, Revemus?"

"At least a quarter."

"And what percentage of a Dyson sphere is actually inhabited, Mnue?"

"Almost none," Mnue said, predicting that the next word would be ‘indeed’ since the human seemed fond of the word.

"Indeed. Most species only need 30 seconds and a dark closet to make more of themselves, but there is a lot of space in space. Ok then, the Hramstahlmk constant is what, M!lpsst?”

“8.117E+562.”

“And the Blahmkstahlmk constant, Ytueli?”

Ytueli looked frightened before hesitantly answering. “I seem to have forgotten that particular thing.”

Well, that didn’t take long. “M!lpsst, kindly inform Ytueli what the number is.”

“1.692E-4”

“Correct. Anyway, moving onto-"

The human pauses for a second as a shrill alarm blares, seeming to read something. "Well then. Class dismissed for today, as I need to go stop a student from accidentally killing all of us."

The students were not quite sure whether or not they heard the human mutter the word ‘again.’