95% of the time you'll be greeted with a "huh...interesting" and no follow up, but in my experience that remaining 5% can be pretty awesome when you stumble upon something that solves a problem in a way nobody else imagined.
That sounds great, but it also sounds rare and potentially low paid.
When it comes to the job market I think it's important, for those of us who are generalists, to NOT attempt to compete in fields where there are massive numbers of candidates all aiming for the same kinds of jobs. In any "hot career track" one would be competing against others who are much more narrowly focused. There's always going to be someone who is more capable and has gained more achievement in any particular activity "silo".
Ironically, generalists do much better in niche jobs where they can apply peculiar combinations of skills. The hard part is these jobs are hard to find, and worse, the situation can be miserable for generalists early in their career.
How it this a problem? It is just another way.
As a dev with 10 years experience and a masters who has not been allowed to specialize due to language/stack/project/product context switching, I can anecdotally say that generalists are not valued and that this breadth of learning generally prevents specialization. I am only a midlevel and make under $100k in a moderate-high COL area.
I think people hiring employees frequently don't realize that they need generalists and instead act like they are hiring permanent contractors.
The conversation began with the OP talking about wide cross-disciplinary pursuits.
"A couple of years back I started dabbling in the social sciences and humanities (my background is in ecology / evolutionary biology), and became interested in one discipline after another. From psychology to history of science to anthropology and sociology, to economics and politics, to philosophy and religious studies and cultural studies, etc."
My post was a reply to a response to "Refuse to Choose" and the concept of a "Scanner", someone who is looking at many different disciplines that do not all immediately relate to one another.
And my original post was to the effect of "Yes, being a scanner is a weakness if you can't synthesize your cross disciplinary knowledge into extremely valuable non-obvious insights and/or awe-inspiring products".
Basically, think of ideas as being distanced apart from each other. Some of them are in your head, others in mine, some are in a book, or a movie. If we are specialists working together on a project, then to access and synthesize ideas that exist in both our heads we need to have a meeting, which takes significant time. To access it from media, we're going to need to consume media and study, which takes even more time. A helpful analogy would be the memory hierarchy if you know a bit about computer architecture.
But, if many different ideas exist already, only in one person's head, no meetings are needed. They can just work, synthesizing as they go. That is where the "Scanner" emerges from their cocoon and inverts what has been up to then a weakness sapping the ability to excel in one field, instead becoming what one might call "A Renaissance Man".