I don't think Functional Programmers have a fear of for-loops, I think they love for-loops, they just prefer to define them "steps first".
A silly cross-paradigm way to look at it is that a lot of functional programming is about "dependency injecting the for-loop" and "inversion of control of the for-loop". For similar reasons to dependency injection in OOP, functional programming wants to focus on the more interesting to the program abstractions up front and leave the final "for-loop wiring" to libraries or the language itself.
The for-loops don't go away, they are still there as necessary wiring. The functional programmer just wants to "dependency inject" all the interesting piece-at-a-time steps inside that for-loop rather than worry about the entire final wired loop body. Just like dependency injection in OO is supposed to make it possible to deal with a class at a time without needing as much of the entire class diagram in your head all once. Also, just like dependency injection: it's designed so that you have a lot smaller, easier to test pieces that make up the whole.
"Fear" could be a wrong word here. I think there's contempt involved instead. Which isn't justified either though. Everything is a tool, and should be used in a right context. I.e. for loops can be better justified sometimes (I find them useful around 1% of cases, but when they are they do their job well)
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Senior Full Stack developer and Software Architect with 20 years of experience. Originaly from France, lived 10 years in the UK and now based in Spain.
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Wow, that video is impressive. I played clarinet when I was in an orchestra decades ago and I was always jealous of the 1st Clarinet who got to play the Rhapsody in Blue intro. There are so many fun little things in there. I didn't think it was possible to simulate some of the techniques in MIDI.
Duolingo is super frustrating if you're learning Spain-Spanish, there are lots of complaints of them not adding Spanish variants of words and Duolingo hasn't moved on it at all in 5+ years.
... I've always admired the capacity for various Space Agencies to put any current (geo)political, social etc. issues aside in the pursuit of science. This isn't a new thing, but you are right - we can all take a page from their book.
