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What does a PhD mean?
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules
Common knowledge would be more appropriate. It is known by many people, but it is not basic as in obvious. It took a long time to know what we learn in a very "basic" high school biology course.
And if you actually remember half of what you learned in that course a decade later, people ask things like, "where do you learn this shit?"