A summary of what methods of thinking each profession requires.

I think it can be a good personal growth exercise to try out a job in one of the listed categories that you aren't naturally strong in.

Sorry for the confusing title.

I'm a student trying to establish myself in STEM.

I interned on a team doing ML for a while and when designing networks we'd encounter hyperparameters like batch size, learning rate, or number/width of layers that we'd have to eyeball the value of as we needed a sane, working value, but didn't have the time to play about with.

Then I spent a while on a team doing cellular biology. Again, we'd encounter choices like the selection of medium for cells, the length of incubation, etc. that I'd have no idea what to pick if it was up to me.

Since I'm trying to get a grip in these fields, I'd like to understand why the people I was mirroring chose these values, because to me they seemed completely arbitrary. We didn't get to alter them while completing the project so I never had the opportunity to gain an intuition for how they influence the result and why they selected the values they did.

What should I do? Should I look for the original research papers that investigated these things?

Just a bit ago Africa had fewer people than either of our continents

It's manual labour.

1. It seems I've been carrying that memory around in the back of my head for the last two years, but that memory was inaccessible to my conscious self as I had completely forgotten about that dream. I wonder how much junk we're carrying around in ow memories that we're unaware of just because it's not something we know that we remember and that we can recall at-will.
2. Something I experienced right now (I've just been doing homework) must have triggered that memory/made it accessible to me.