It’s no secret that data science is a good career path. The jobs are in demand, the salaries are compelling, and the work is interesting. So how does someone break in?

In particular, I’m interested in how an experienced IT professional can move into data science. What advice would you give to someone with, say, five years of computing experience, who wants to break into the field? Tell me about the skills required, where you’d tell your friend to go to acquire them, and how to get a job without a specialized degree. What would make you say, “I want to hire this person, even if the individual lacks the relevant schooling”?

I'm trying to recall a short story I read about 10 years ago in English class in school. It would probably be fair to call it "sci-fi", but I'm not sure how important that is.

What I remember: the story was set in the midst of an escalating arms race, Cold War-style, and the characters were chiefly military personnel (I think).

At some point, a chief actor obtains technology that is designed to (from memory) "disintegrate all weapons (certain materials/metals?)" within a vicinity.

I believe the technology is then used, and what ensues is a world-enveloping nuclear winter. I'm not sure how the weapons disintegration tech leads to a nuclear winter. It's also quite possible that I'm conflating two separate stories I read in that class.

Anyone have any idea what short stories I could be thinking of? This would be at the very latest pre-2010 stuff, and knowing my English teacher (old bloke from Yorkshire) probably 20th century. Probably.