At the time, I was a college dropout. My job history looked like: self-employed, Starbucks, and a bunch of catering per diem gigs. I didn't know what a "software engineer" did, although I had a vague desire to make video games (but no idea how).

I was technical enough to install WordPress with Cpanel and resell hosting to mom/pop businesses, but I couldn't really code beyond copy/pasting PHP snippets.

The Intro to Computer Science series on MITx changed everything. I remember finishing a homework assignment (hangman game), then immediately looking for more things to code, even though the assignment took me 8+ hours.

I was hooked! Within a few months, I landed a gig at a video game studio ($15/hour dream job). My job was a mix of QA, systems admin, gameplay design, and tools programming.

A few years after that, I shook Ned Batchelder's hand after his Pycon 2015 talk. I was a software engineer at Red Hat by then, but still feeling like I'd snuck in through the back door. Knowing that I'd aced MIT coursework helped me push down my insecurities, even years later.

By my early 30s, I was millionaire - thanks entirely to my software engineering career. I quit my day job last year to take another swing at entrepreneurship, and it blows my mind to compare then/now.

Thanks to everyone who made MITx and Edx.org. Y'all changed my life!

The first was a year long British Literature seminar. The professor, Siobhain Bly Calkin, was a brilliant teacher and lecturer. The course was nominally about British literature, but she made the course an incredible historical walk through British history and the history of religion in Europe. Her explanations of religious debates, and the royal bloodline feuds and twists of fate, radically shifted how I viewed European history and how people lived in Europe and the British Isles before the modern age. I've found history classes in general to have an enormous impact on my worldview.

The second was a year long seminar on Modernist Literature. The professor, Dana Dragumoiu, was not the best lecturer, but she was a brilliant scholar and had almost unreasonably high expectations for everyone in the class. Everyone got Cs and Ds on their first essay, which came to a shock to many, but then she methodically worked with us to improve our arguments and writing skills. It felt like learning to read all over again. She taught me, and my fellow classmates, to exceed the minimum and to excel through hard work, she believed in us in a way that is very rare in academia (she considered us as adults) and I can attest that it was very satisfying.

Strongly recommend!

- Not a MOOC, but I read Fundamentals of Physics by Halliday, Resnick, Walker, and it also had the same big impact on me- in terms of changing my whole worldview about learning and knowledge and books.

- In my last year of college, I took IBM Data Science Professional Certificate course on Coursera. It did not have much technical depth at all. But it introduced me to Data Science.

- Then I took Andrew Ng's ML and DL on Coursera. Learned a lot. Connected the dots from back. Learning the Math properly that was triggered by MIT-OCW, finally paid off as all ML concepts were promptly undetstood by me.

- fast.ai course. It helped me build practical AI projects. Jeremy Howard is among the best instructors out there. I got my first job after this course. I made a lot of projects as well.

- Deep Learning course by Yann LeCun and Alfredo Canziani from NYU. Learned most DL from this course. It has made me a much better researcher.

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- Mathematics for Machine Learning from Imperial College, London.

- Computational Neuroscience from Neuromatch Academy. It has unlocked the "Hacker mentality" in me.

However the mandatory engineering class were the most valuable overall, as I would never have studied those otherwise. They keep coming up in everyday life.

In community college (rough approximation of what CÉGEP is), I had a bunch of bullshit classes that changed the course of my private life: film, photography, philosophy, etc. It made me amore well-rounded person, even though I didn't see the point at the time. That's why the classes were mandatory.

I play jazz as a semi-pro but have backed some pretty hardcore players from time to time. Conrad sadly died in 2021[2] but I've had decades of benefit in terms of confidence on the bandstand from that course.

[1] https://jaelliott24.wordpress.com/2021/09/21/harmony-with-le...

[2] https://londonjazznews.com/2021/05/18/obituary-conrad-cork-1...

There after understanding basic threat modeling it gave me much more confidence in myself as I could see my own programs as a cake to which I knew every ingredient and possible way it could be poisoned… one step closer to being an all round dessert chef.

I think it's instrumental in my ease of reading and understanding code bases in new languages.

Putting money to a good use, caring about society and the environment.

But this is something I'm interested in, so I'll have to check that course out.

As an impressionable 20 year old with no background in finance, it introduced me to passive investing, Vanguard, the efficient market theory and the power of compound interest.

It's funny, 20+ years later I still think back to some specific lectures in his class whenever I encounter the CAPM or Black-Scholes in my day job. Prof. Malkiel helped me develop a healthy skepticism about claims in finance that has served me really well in my career and my personal finances.

This experience taugh me the ways of systems programming without the perils of C (that I would discover later), while setting a baseline of what to expect from a programming language environment.

I was studying for my PhD in Physics at the time and didn’t know what to do with myself with graduation only a year or so away. I was fascinated by the whole machine learning topic and got me interested in learning more - looking back it was the gateway to my data scientist career, which I’m still doing 8 years and 3 countries later.

I think I got quite lucky that this was around the time that data science was becoming a hot topic in industry, but there were very few qualifications in it (sorry statisticians) so people like me with STEM PhDs and relatively little training could go straight into a job from graduation (with varying results)

I am sad to say my junior year honors literature course had the most impact on my career. One of the assignments was an analysis of one or two Matthew Arnold works (Matthew Arnold's a 19th century poet & critic who's pretty well known in academia.) He's not my favourite, but not horrible by any means. I'm more of a Browning or Houseman fan, really. But in academia you study more than just the stuff you like.

Turns out my prof was a guy who was REALLY INTO ARNOLD.

I write a paper and pull some argument out of my ass; can't even remember it now. My paper came back with an F. Not because I pulled the argument out of my ass, but because it was the same argument made in an obscure journal by an obscure academic. My prof demanded to know a) why I didn't properly cite this obscure academic and b) where I had found a copy of the journal article. He apparently had the last printed copy in Texas and it was starting to deteriorate. It wasn't in our school's library, so where could I have possibly found the article? (this was before everything was on the intarwebs.)

I tried to explain I had simply pulled the argument out of my ass, and that it seemed reasonable. His counter was there was no way a mere undergraduate could have produced such a sophisticated critique of Matthew Arnold.

So I got an F on that paper and every paper I turned in afterwards. Sadly, it was past the point I could drop the course, so I wound up with an F. I dropped out of the honors program and eventually left that university.

I still pursued natural language research and still love the intersection of semantics and syntax. Fascinated by Sapir-Whorf, think Chomsky's a first class mind, &c &c

Before that class, there was a non-zero chance I would have pursued a PhD in literary criticism. Afterwards? No. F that and F academia. I still write, but not as a career. And I still enjoy reading both high-brow literature and low-brow genre. And the cool thing now is I pretty much read what I want to. I don't have a stack of "serious" books I have to read. I don't have to read everything Doris Lessig wrote. I can read another Saul Bellow novel and not feel guilty (though obviously, I'd feel pretty depressed afterwards.)

So... that one class definitely dissuaded me from a life in academia. I'm out in the real world banking coin and doing what I want.

Now... please feel free to down-vote me because I criticized academia and had the temerity to suggest I was capable of independently constructing a reasonable critique of a 19th century poet.

There was also a bit of math towards the end that I was a bit shaky on... but again, the examples in class really made it clear. I can't say I remember too much about Optics, but the rudimentary Complex Analysis in the course gave me the confidence to take other courses that used "difficult" math.

As a high-school Valedictorian, I too was set up to do very well in academia, but could tell it would be too hostile and backwards from what I wanted. You're expected to be way too submissive and highly discouraged from original/independent/unpopular thought that conflicts with those already invested. I was excited to get to "real education" after conforming to high school but the rules only tighten, and it's 100x hyper-political.

So I skipped it, self-taught, and started stacking money. No use in casting pearls before swine and try to "fix the system" (and likely just be sacrificed to it, like Semmelweis). To the people trying to fix problems, thank you for choosing to be the martyrs so I don't have to; on the other hand, Max Planck had the right attitude when he said things advance via funerals, so why let it be your funeral?

Academics are good for bagging my groceries and delivering my pizza though, so I am grateful for their contributions. (I'm dunking on them here in jest, but PhDs -- pizza handling and delivery -- are above midwits but just often grossly misapply efforts. Sad to see).

I have a feeling that if you articulated your case well enough the prof would have eventually dropped the issue.

I have to say, this seems like it’s mostly on you not defending yourself. Sure the professor was wrong and being an ignorant ass but you shouldn’t have rolled over like that.