This is probably the main explanation, I agree. There are countless programming languages and storage methods and so on, 99% of which aren't really of interest

This is probably the main explanation, I agree. There are countless programming languages and storage methods and so on, 99% of which aren't really of interest to me. I use one long-out-of-fashion programming language only ever mentioned as a punchline, and one non-trendy database. Broader topics usually are of interest to me, and tech-adjacent or societal things relevant worldwide like approaches to housing, homelessness, how we use the environment, developments in growing/selling food (robot restaurants).