Maybe a tactic could be to figure out roles or niches where a relatively larger proportion of the work involves dealing with problems or aspects of reality that change at a relatively slow rate (physical laws? logical axioms? geology? human biology?), and where you can spend a greater fraction of your time working from first principles and accumulating depth and breadth of knowledge with a longer half-life of usefulness.
On another hand, there can be a good living in helping address supply / demand imbalances in the market for $latest trendy ephemeral thing.
[1] amusingly, today you can freely download a PDF of the method, as it was published in the original latin: https://royalsocietypublishing.org/doi/10.1098/rstl.1694.002...