This declining relevance is true of other scientific works as well, but that is rarely touched upon. I suppose in some sense my comment expressed my annoyance that only philosophical roots are rediscovered every now and then.
This declining relevance is true of other scientific works as well, but that is rarely touched upon. I suppose in some sense my comment expressed my annoyance that only philosophical roots are rediscovered every now and then.
It lasted up until the 1950s or so, and then philosophers started to fall behind. There has also be a substantial decline in math education for philosophers. Both Russell and Quine contributed directly to the foundations of mathematics, for instance. Even Kripke made substantial contributions to modal logic and semantic paradoxes. Nowadays you'll have to look very hard to even find a substantial contribution of a philosopher in logic, even though that's historically the mathematical discipline they know best.
As for the philosophical ideas without backing them up. People always grab some philosopher who had an idea and point out the "early roots", but they conveniently neglect the fact that simultaneously hundreds of other philosophers had patently absurd ideas as well. Even within philosophy there is a huge business based entirely on selection bias. People quote Aristotle as authoritative source, but of course only ever those parts of his work that remotely make sense. Democrit's theory of atoms is another typical example. It barely made sense at his time, and only so in opposition to other nonsense invented by "nature" philosophers then, yet he's misquoted as the inventor of the modern atom theory in every second slide show about chemistry.
But it seems equally valid to consider him a mathematician who knew philosophy. In which case, you could just as well frame the argument as mathematicians and scientists no longer have a good understanding of philosophy and are therefore incapable of contributing to the philosophy of their field.
And there are a few philosophers, such as Tim Maudlin, who know the science well enough to persue its philosophical questions. Despite these exceptions, I think it is not unreasonable to ask if 21st. century academic philosophy has chosen to turn away from the philosophical issues of 21st. century fundamental science.
No-one is stopping philosophers from contributing to science.